Maybe a little off topic, but here goes...
Playing bia seems to have influenced my playing style in other games...recently Ive been playing 'Warhammer 40,000-Dawn of War', on the pc. When advancing into unknown territory I always try to have at least two squads of Space Marines-one to assault, the other to offer covering and support fire.
War seems to be my preferred genre in gaming...but bia certainly gets your tactical brain going more than most shooters.