ISO 45 best loadout in Call of Duty Modern Warfare 3 2023 (CoD MW3 2023). Includes best ISO 45 build, class setup, attachments, & how to unlock.
Table of Contents
ISO 45 - Weapon Stats & How To Unlock
ISO 45
Weapon Stats
Basic Information
| Weapon Type | SMG |
|---|---|
| How To Get | Get 45 Kills using SMGs without taking damage (After reaching level 55) |
| Max Level | 20 |
| Info | The ISO Platform's answer to room clearing. This SMG dominates with a high fire rate and the stopping power of .45 Auto rounds. |
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ISO 45 - Compatible Attachments
Muzzle
| Colossus Suppressor S | - Leveling the Striker 9 to Level 13 |
|---|---|
| Ster45 Skyfury Compensator S | - Leveling the AMR9 to Level 4 |
| T4LR Saber Compensator S | - Leveling the Striker 9 to Level 11 |
| S-37C DL Breacher Device S | - Leveling the Striker 9 to Level 17 |
| L4R Flash Hider | - Leveling the AMR9 to Level 7 - Leveling the MCW to Level 24 - Leveling the Sidewinder to Level 10 |
| Shadowstrike Suppressor S | - Leveling the Striker to Level 11 |
| HMRES Mod Suppressor S | - Leveling the WSP-9 to Level 13 |
| Monolithic Suppressor S | - Leveling the Rival-9 to Level 7 |
| Sonic Suppressor S | - Leveling the WSP-9 to Level 24 |
| XTEN RR-40 | - Leveling the PDSW 528 to Level 13 |
| Forge DX90-F | - Leveling the MX9 to Level 21 - Leveling the P890 to Level 15 |
| SA Schalldampfer 99 | - Leveling the Lachmann Sub to Level 18 |
| Singuard MKV | - Leveling the VEL 46 to Level 16 |
| EXF Huntress-90 | - Leveling the Minibak to Level 7 |
| XTEN Black Kite | - Leveling the FSS Hurricane to Level 15 |
| FSS Covert IV | - Leveling the BAS-P to Level 3 |
| ELR Blackfire Compensator S | - Leveling the WSP Swarm to Level 14 |
| Wrathguard Compensator S | - Leveling the WSP-9 to Level 27 |
| T51R Billeted Brake S | - Leveling the WSP-9 to Level 20 |
| Purifier Muzzle Brake S | - Leveling the Rival-9 to Level 14 |
| VP27 Mini Brake S | - Leveling the Striker to Level 17 |
| Endless 30 Compensator | TBD |
| JAK BRB | TBD |
| Zehmn35 Compensated Flash Hider | TBD |
| Bruen Pendulum | - Leveling the PDSW 528 to Level 29 |
| AVR-T90 Comp | - Leveling the Vaznev-9K to Level 4 |
| Lacerta Compensator | - Leveling the BAS-P to Level 22 |
| FTAC Castle Comp | - Leveling the 556 Icarus to Level 12 - Leveling the MX9 to Level 10 |
| XTEN Razor Comp | - Leveling the FSS Hurricane to Level 5 |
| XRK Sandstorm | - Leveling the Fennec 45 to Level 10 |
| Lockshot KT85 | - Leveling the TYR to Level 3 - Leveling the RPK to Level 10 - Leveling the Lachmann Sub to Level 9 |
| Bruen Cubic Comp | - Leveling the VEL 46 to Level 13 |
| XRK Knockout Breach | - Leveling the FSS Hurricane to Level 13 |
| TA Hul-Breach | - Leveling the Fennec 45 to Level 3 |
| Spiral V3.5 Flash Hider | - Leveling the PDSW 528 to Level 7 |
| Fox-202 Flash Hider | - Leveling the Fennec 45 to Level 16 |
Barrel
| 4" Frame S-1 | - Leveling the ISO 45 to Level 15 |
|---|---|
| 7" Ex Raptor-V2 | - Leveling the ISO 45 to Level 6 |
| 9" PTX Trainer | - Leveling the ISO 45 to Level 10 |
| 16" XLB-S | - Leveling the ISO 45 to Level 18 |
| 6" Axeblade | - Leveling the ISO 9mm to Level 11 |
Laser
| Kimura Ryl33 Laser Light | - Leveling the Striker 9 to Level 21 |
|---|---|
| CS15 Scarlet Cylindrical Laser | - Leveling the Striker 9 to Level 9 |
| 1MW Artemis Laser | - Leveling the Victus XMR to Level 8 |
| VLK LZR 7MW | - Completing the Armory Unlock |
| Pro Sapphire Cylindrical Laser | - Leveling the Rival-9 to Level 8 |
| Verdant Hook Cylindrical Laser | - Leveling the WSP Swarm to Level 11 |
| 1MW Quick Fire Laser | - Leveling the Lockwood 300 to Level 4 |
| Accu-Shot 5MW Laser | - Leveling the Lockwood Mk2 to Level 11 |
| 7MW Canted Laser | - Leveling the BAS-P to Level 14 |
| Schlager Ulo-66 Laser | - Leveling the Lockwood 680 to Level 13 - Leveling the Fennec 45 to Level 7 |
| STOVL Tac Laser | - Leveling the Striker to Level 13 - Leveling the Bryson 800 to Level 10 |
| Hipshot L20 | - Leveling the PDSW 528 to Level 4 |
| Point-G3P 04 | - Leveling the Expedite 12 to Level 11 |
| FJX Ultrabeam XR | - Leveling the Lachmann Sub to Level 12 |
| EXF Solarflare | - Leveling the WSP-9 to Level 14 - Leveling the VEL 46 to Level 2 |
Optic
| Slate Reflector | - Leveling the Striker to Level 12 |
|---|---|
| XTEN ERX-10 Mini | - Leveling the MTZ Interceptor to Level 6 |
| Cronen Mini Dot | - Leveling the Striker 9 to Level 2 - Leveling the FSS Hurricane to Level 3 |
| KR Minitac-40 Riser | - Leveling the AMR9 to Level 3 |
| FSS Spectre Microtherm | - Leveling the AMR9 to Level 19 |
| MK. 3 Reflector | - Leveling the MTZ-556 to Level 2 |
| Corio Re-X Pro | - Leveling the .50 GS to Level 4 |
| KR V4 1X Riser | - Leveling the Riveter to Level 2 |
| SL Truesight 2.5X | - Leveling the BAS-B to Level 29 |
| KR Marauder 9 Riser | - Leveling the Holger 556 to Level 19 |
| AOK 4.0X RQ-9 Recon | - Leveling the SVA 545 to Level 2 |
| TX4 Havoc | - Leveling the BAS-B to Level 5 |
| Schlager Night View | - Leveling the STB 556 to Level 5 |
| VX350 Thermal Optic | - Leveling the RPK to Level 7 |
| JAK Bullseye | TBD |
| Slimline Pro | - Leveling the Renetti to Level 4 - Leveling the Lachmann Sub to Level 11 |
| SZ Mini | - Leveling the COR-45 to Level 3 - Leveling the P890 to Level 4 |
| Cronen Mini Pro | - Leveling the WSP Swarm to Level 8 - Leveling the Expedite 12 to Level 7 |
| SZ Sigma-IV Optic | - Leveling the Rival-9 to Level 2 - Leveling the X12 to Level 4 |
| Sz Minitac-40 | - Leveling the SO-14 to Level 5 |
| QTG Reflex Sight | TBD |
| Caucasus Reflex Sight | - Leveling the Pulemyot 762 to Level 5 |
| Nydar Model 2023 | - Completing the Armory Unlock |
| Dragon's Eye Optic | TBD |
| Rhino Reflex | TBD |
| XRK On-Point Optic | - Leveling the Bryson 890 to Level 5 |
| Aim OP-V4 | - Leveling the BAS-P to Level 5 |
| DF105 Reflex Sight | - Leveling the Kastov-74u to Level 10 |
| Monocle CT90 | - Leveling the Minibak to Level 12 |
| Corvus Sol-76 | - Leveling the Lockwood 680 to Level 5 - Leveling the VEL 46 to Level 5 |
| SZ Recharge-Dx | - Leveling the Fennec 45 to Level 4 |
| SZ SRO-7 | - Leveling the M16 to Level 11 |
| Chrios Holo | - Leveling the Holger 26 to Level 15 |
| Corio Enforcer Optic | - Leveling the Vaznev-9K to Level 14 |
| SZ Lonewolf Optic | - Leveling the M4 to Level 2 |
| Kazan-Holo | - Leveling the Kastov 545 to Level 7 |
| SZ Battle Optic | - Leveling the BAS-P to Level 19 |
| Corvus Downrange-00 | - Leveling the MX9 to Level 8 |
| XTEN Angel-40 | - Leveling the TAQ-M to Level 11 |
| SZ Holotherm | - Leveling the PDSW 528 to Level 12 |
| Corio ELT-10 2.5 | - Leveling the DG-58 LSW to Level 5 |
| KR Mortis Precision 2.5X | - Leveling the DG-56 to Level 4 |
| Corio Eagleseye 2.5X | - Leveling the MCW 6.8 to Level 8 - Leveling the DM56 to Level 19 |
| TOS Nightfall 2.5X Thermal Optic | - Leveling the MTZ-762 to Level 7 |
| VLK 4.0 Optic | - Leveling the KATT-AMR to Level 3 - Leveling the Kastov 762 to Level 4 |
| Schlager 3.4X | - Leveling the RAPP H to Level 12 |
| Forge Tac Delta 4 | - Leveling the 556 Icarus to Level 9 |
| Cronen Zero-P Optic | - Leveling the TAQ-56 to Level 4 |
| SZ Bullseye Optic | - Leveling the SO-14 to Level 20 |
| SZ Aggressor-Ir Optic | - Leveling the ISO Hemlock to Level 5 |
| Teplo-OP3 Scope | - Leveling the SA-B 50 to Level 9 |
| Corvus Ghostview | - Leveling the KATT-AMR to Level 14 |
| DR582 Hybrid Sight | - Leveling the SAKIN MG38 to Level 5 |
| Hybrid Firepoint | - Leveling the Lachmann-762 to Level 14 |
| SZ Vortex-90 | - Leveling the VEL 46 to Level 28 |
| BPZ40 Hybrid | - Leveling the TAQ-V to Level 8 |
| SZ Oscar-9 | - Leveling the BAS-P to Level 15 |
| Thermo-Optic X9 | - Leveling the Lachmann-556 to Level 14 |
| Teplo Clear Shot | - Leveling the HCR 56 to Level 9 |
| Cronen Intlas MSP-12 | - Completing the Armory Unlock |
| Intlas CAS-14 | - Completing the Armory Unlock |
Stock
| SK-3 Cheetah | - Leveling the ISO 45 to Level 19 |
|---|---|
| Mace 650 | - Leveling the ISO 45 to Level 2 |
| Demo Fade Tac | - Leveling the ISO 45 to Level 16 |
| Torrent Span-9 | - Leveling the ISO 45 to Level 12 |
| Collapsed Stock | - Leveling the ISO 9mm to Level 9 |
Rear Grip
| Stalwart GX | - Leveling the ISO 45 to Level 13 |
|---|---|
| Exp Shear | - Leveling the ISO 45 to Level 17 |
| A30 Stout | - Leveling the ISO 45 to Level 4 |
Magazine
| 12 Round Mag | - Leveling the Haymaker to Level 20 - Leveling the ISO 45 to Level 20 - Leveling the P890 to Level 8 |
|---|---|
| 45 Round Drum | - Leveling the ISO 45 to Level 14 |
Ammunition
| .45 Auto High Grain Rounds | - Leveling the Striker to Level 15 |
|---|---|
| .45 Auto Low Grain Rounds | - Leveling the Striker to Level 6 |
| .45 Auto Hardened Rounds | - Leveling the Striker to Level 21 |
| .45 Auto Frangible | - Leveling the P890 to Level 3 |
| .45 Auto Hollowpoint | - Leveling the Fennec 45 to Level 11 |
| .45 Auto Armor Piercing | - Leveling the P890 to Level 10 |
| .45 Auto Overpressured +P | - Leveling the Fennec 45 to Level 26 |
Underbarrel
| FTAC MSP-98 Handstop | - Leveling the Sidewinder to Level 11 |
|---|---|
| XTEN Phantom-5 Handstop | - Leveling the AMR9 to Level 13 |
| FTAC SP-10 Angled Grip | - Leveling the KV Inhibitor to Level 15 |
| Chewk Angled Grip | - Leveling the Longbow to Level 11 |
| FTAC Ripper 56 | - Leveling the MTZ Interceptor to Level 10 - Leveling the Lachmann-762 to Level 6 |
| Demo Cleanshot 40 | - Leveling the Holger 26 to Level 3 - Leveling the Lockwood 300 to Level 8 |
| FTAC Tiger Grip | - Leveling the BAS-B to Level 10 - Leveling the M4 to Level 6 |
| Bruen Sync Shot Grip | - Leveling the Striker 9 to Level 10 - Leveling the PDSW 528 to Level 22 |
| XTEN Drop Grip | - Leveling the STB 556 to Level 7 |
| Kimura Ryn-03 Vertical Grip | - Leveling the MTZ-556 to Level 6 |
| SL Skeletal Vertical Grip | - Leveling the Riveter to Level 7 |
| Bruen Pivot Vertical Grip | - Leveling the SVA 545 to Level 12 |
| Merc Foregrip | - Leveling the Holger 556 to Level 10 - Leveling the TAQ-V to Level 6 |
| XRK Edge BW-4 Handstop | - Leveling the Rival-9 to Level 9 |
| Dr-6 Handstop | - Leveling the WSP Swarm to Level 23 |
| XTEN TX-12 Handstop | - Leveling the TYR to Level 14 |
| FTAC RS-9 Stealth Angled Grip | - Leveling the DG-58 LSW to Level 14 |
| Bruen Bastion Angled Grip | - Leveling the MCW 6.8 to Level 7 |
| Commando Foregrip | - Leveling the BAS-P to Level 8 |
| Edge-47 Grip | - Leveling the M13B to Level 16 |
| Demo Firm Grip | - Leveling the DG-56 to Level 13 - Leveling the Lockwood Mk2 to Level 9 |
| XTEN Gravedigger | - Leveling the Signal 50 to Level 9 |
| Demo Imp-44 Grip | - Leveling the TAQ-56 to Level 6 |
| FSS Sharkfin 90 | - Leveling the Fennec 45 to Level 2 |
| Agent Grip | - Leveling the KVD Enforcer to Level 6 - Leveling the X13 Auto to Level 17 |
| XTEN Nexus Grip | - Leveling the BAS-P to Level 2 |
| Phase-3 Grip | - Leveling the MTZ-762 to Level 11 - Leveling the Vaznev-9K to Level 9 |
| Bruen Heavy Support Grip | - Leveling the Striker to Level 8 |
| Kimura Seraphic Vertical Grip | - Leveling the KVD Enforcer to Level 25 |
| Holger Vertical Grip | - Completing the Armory Unlock |
| Bruen Tactical Vertical Grip | - Leveling the MCW to Level 9 |
| Lockgrip Precision-40 | - Leveling the Lachmann Sub to Level 9 |
| Hex-40 Grip | - Leveling the ISO Hemlock to Level 9 |
| Schlager Tango | - Leveling the Kastov 762 to Level 7 |
| VX Pineapple | - Leveling the Haymaker to Level 4 - Leveling the 556 Icarus to Level 14 |
| OP-X9 Foregrip | - Leveling the WSP Stinger to Level 7 - Leveling the EBR-14 to Level 6 |
| Operator Foregrip | - Leveling the PDSW 528 to Level 16 |
| TV Wrecker Grip | - Leveling the HCR 56 to Level 10 |
| Bruen Tilt Grip | - Leveling the TAQ-56 to Level 13 |
| Cronen Grooveshot Grip | - Leveling the Bryson 800 to Level 7 |
| EXF Backdraft Grip | - Leveling the BAS-P to Level 17 |
| Bruen Warrior Grip | - Leveling the VEL 46 to Level 3 |
ISO 45 - Weapon Progression
| Lv | Feature |
|---|---|
| 5 | Mace 650 |
| 6 | Optic Category |
| 7 | A30 Stout |
| 8 | Ammo Category |
| 9 | 7" Ex Raptor-V2 |
| 10 | Muzzle Category |
| 11 | 12 Round Mag |
| 12 | Underbarrel Category |
| 13 | 9" PTX Trainer |
| 14 | Laser Category |
| 15 | Torrent Span-9 |
| 16 | Stalwart GX |
| 17 | 45 Round Drum |
| 18 | 4" Frame S-1 |
| 19 | Demo Fade Tac |
| 20 | Exp Shear |
| 21 | 16" XLB-S |
| 22 | SK-3 Cheetah |
CoD: MW3 Related Guide
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