The original had bullet drop, but it was janky. "Extra Quality" means true-to-life ballistics, weapon jamming (optional), and realistic penetration. Shooting through a corrugated tin roof should feel different than shooting through a concrete wall.
Some "IGI 3" videos or downloads actually feature a completely different game titled project igi 3 the plan extra quality
: The game features diverse urban environments, including high-security facilities like the Santa Monica County Jail Venice Express Stealth Focus The original had bullet drop, but it was janky