One of the most underrated multiplayer games of the last year in my opinion:
Max Payne 3
I guess the unbelievable uncomfortable server lobby, some disconnection issues in certain mods, a really hard start for beginners (lousy weapons, no armor) and the fact that max payne is considered as a singleplayer have lead to its relative unpopularity.
Sadly, cause i think the game got potential. The "core" system does work very well in my opinion: The Bullettime in a Multiplayer!(and the very nice Ragdoll!!)
I also like sound and feeling of the pistols and uzi´s...
At least I´m having lots of fun with it.
It was difficult to get good ingame multiplayer footage, cause the low frames i experience while recording makes it hard to go on a real spree, but i tried my very best... 
Most of the scenes are from the "Payne Killer" mod, where everyone on the server is chasing Max and his friend Passo. If Max dies, the player that has given the most damage, becomes Max.(overpowered health, weapons, bullettime and other abilietes)