Best M40A3 Loadout in Call of Duty 4: Modern Warfare
29 października 2026 · Zaktualizowano 10 listopada 2026 · 2 min czytania
Original-game build
Original-game guide from the October 2026 editorial snapshot. Accessible sources confirm the attachment names; this is not a claim of a majority consensus or current Warzone compatibility.
Source check: 2026-11-10 · 3 independent source families
- Attachment
- ACOG Scope
- Secondary
- M9 with Silencer
- Grenade
- Flash Grenade
- Perk 1
- Claymore x2
- Perk 2
- Stopping Power
- Perk 3
- Deep Impact
Na tej stronie
Source review — 10 November 2026: This is an original-game loadout from the dated guide below. Accessible source pages confirm the listed weapon attachment names. Perks and equipment retain their original dated attribution; the source review does not imply hands-on testing or a fresh balance-patch analysis.
The M40A3 is Call of Duty 4's classic bolt-action sniper, and a Steam guide updated in February 2022 credits it with kickstarting the montage scene. Our verdict is ACOG Scope and Stopping Power for quick one-shot kills, or no attachment if you prefer the standard scope. This applies to original 2007 multiplayer.
Best M40A3 loadout
The Steam guide (updated February 2022) publishes the attachment and Stopping Power. KeenGamer (17 November 2016, written for the remaster) adds the rest and agrees on Stopping Power, but treats the ACOG Scope as an alternative to the standard scope.
| Slot | Pick | What it does |
|---|---|---|
| Attachment | ACOG Scope | Steam guide says a bug raises its base damage |
| Secondary | M9 with Silencer | KeenGamer's sidearm |
| Grenade | Flash Grenade | KeenGamer's pick |
| Perk 1 | Claymore x2 | KeenGamer uses them to defend your position |
| Perk 2 | Stopping Power | Steam guide credits it with consistent upper torso and head kills |
| Perk 3 | Deep Impact | KeenGamer's pick for shooting through cover |
Why this build works
The Steam guide's damage claim for the ACOG Scope is one community source's finding. PlayStation Universe (1 November 2007) says the opposite about the attachment in general, claiming it hurts snipers, while a Steam multiplayer guide (updated December 2013) says it speeds sniper aiming on small maps. Opinion is split, so try both. The Steam guide's only stated downside next to the Barrett is a long reload.
How to play it
PlayStation Universe rates it above the M21 for skilled snipers because its one-shot kills mean fewer tracers for enemies to follow. It also says to lead moving targets, and to lead more if you keep missing. Claymores watch your back.
Alternative setups
Long-range hold (PlayStation Universe, November 2007): Claymore, Sleight of Hand or Stopping Power, Iron Lungs.
Unlock notes
Sources disagree: Md2a's challenge guide (2008) lists the M40A3 at level 3, while PlayStation Universe lists an "M40" at level 7. Md2a gives the ACOG Scope at 100 kills.
Sources
- Cyberly: Call of Duty 4 Challenge Guide by Md2a
- Steam Community: Call of Duty 4 Class Setup Guide
- Steam Community: Call of Duty 4 Multiplayer Guide
- KeenGamer: 5 Great Classes for Modern Warfare Remastered
- PlayStation Universe: Call of Duty 4 Modern Warfare Cheats
Checked: 30 October 2026. Reflects Call of Duty 4 multiplayer as of the dated guides above; none names a patch.