Hint: you run fast and shoot stuff
Whether you're ready or not, Crysis 3 is coming, as is the multiplayer beta. This video shows off a few modes, including Hunter Mode and Crash Site -- the two gametypes headlining the beta.
Hunter Mode is a gametype that pits 12 troopers against two cloaked Hunters (think Splinter Cell's Spies vs. Mercs). Crash Site is a team based game that resembles Domination. While I'm not generally impressed with what I've seen so far of the game, Hunter Mode does look pretty neat.
The multiplayer beta starts on January 29th -- hey, that's tomorrow! Better start watching now.