It was in Medal Of Honor: Allied Assault, on the PC. On a match to pre-determined amount of kills (with unlimited respawns though), I at one point assaulted the enemy side of a forest-map, and killed everyone on their team, twice. In a row. Without dying. My last kill was with a melee attack, as I was out of ammo.
It was like they had never heard of lateral movement, cover and jumping. Funny thing is, before I got kicked from that server for 'blatant cheating' (yeah right....), I got asked to join a clan.