Unlike simple cheat codes that give you infinite ammo, a alters the game’s core .ini files and 3D models. Specifically, these mods change:
: Weapons like the thermal-scoped M82A1-T only appear in one mission naturally; mods let you use them throughout the campaign. igi 2 weapons mod
Mods frequently focus on weapons that are otherwise rare or locked to specific campaign segments: IGI 2: Nightshade Weapons Mod Report