Men of War.
Dying three mins of a match my team were losing. I had one puma left. Snuck it round to behind enemy lines, on RHS top of a 8 player map set to landscape (i.e. huge). Then drove, in direct control mode, right behind enemy lines.
Obviously, to begin with, tanks were facing the wrong way, but by the time I hit middle of the map, they had all spun, and I had 6+ tank destroyers facing me, with shots flying (and somehow glancing, rather than destorying, as they had done to my TIGER). Still, I managed no penetrating shots, so it still looked a bit pointless.
Then, I drove over a d-17 (fixed artillery placement), killing weapon and crew. Then found a katyushka launcher, which I blew up in a firey explosion. My team is still considerably behind in kill points. Killed a second katyushka, which unwisely chose this moment to fire, despite its proximity to my rampaging puma, revealing its position. Then, with 6 tank destroyers STILL firing at me, I sped right past the nearest one, machine-gunning random infantry on the way, to discover that my actions had put my team ahead by 3 points (we had been like 300 behind), with 30 seconds to go.
Awesome. Slightly lost its touch when one of the TDs roared up behind my Puma (I'd stopped to type my disbelief at my allies), and blew it up. But we still won (by four points, don't you know), so it was worth it.