Aliens: Colonial Marines is a PC game known for its numerous bugs and unfinished mechanics, attributed to Gearbox Software's resource diversion to Borderlands 2. The modding group TemplarGFX is working on a project called Aliens: Colonial Marines Overhaul (ACMO) to improve the game. ACMO focuses on mechanical changes, including rebalancing difficulty levels, reworking the weapon system, and overhauling alien AI. Initial improvements include better weapon positioning and enhanced flashlight effectiveness. However, pacing issues and awkward character navigation remain. Combat enhancements include improved visual feedback and effects, but AI behavior is still erratic, leading to unsatisfying encounters. Despite these efforts, many glitches persist, and the fundamental flaws of the original game continue to affect the experience.