I had a situation similar to that in CoD4 before...I was in the middle of a match, and my whole team just...buggered off. We were fairly even in score before then...but, it was 4-to-1, me being the one.
The last minute ended with me in a hangar with a Skorpion SMG, a M1911, no grenades, and only one extra clip for each of my guns. So, outnumbered and outgunned, I waited in the hangar, and had a bastard come in on the right, I blew him away. His friend came by just a second or two later, and I emptied the rest of my Skorpion clip and a few M1911 rounds in him. THEN, both of the remaining enemies came into my little hangar not a few seconds later, just long enough to reload my pistol, and I blow one guy away, take a few bullets, and stick a knife into the remaining guy's head.
This shit all happened in less than...half a minute. Oh, I also won that round.
[ETA]
Oh, and by the way...this, is the Skorpion, for those of you who don't know:
Yes, it is tiny. And therefore manly.