The "top" or most common trainers for this version typically offer a suite of memory-modifying features (cheats) to assist in single-player missions:

Forget scavenging for ammo crates. This feature locks your primary, secondary, and special weapon ammo at 999. Even better, “No Reload” means you can fire a Barrett M82 .50 cal continuously without pausing.

: Protects tanks, choppers, and watercraft during heavy combat missions. Technical Context (Version 1.7.4.2)

– Increases movement speed or allows for higher jumps to reach unintended areas. In-Game Console Cheats