The Champions Title Update Title update for Halo 4 has 8 achievements worth 220 gamerscore.
In matchmaking, assassinate the ball carrier within five meters of your own goal in Ricochet.
In matchmaking, score three times in one round of Ricochet.
In matchmaking, score by throwing the ball from 30 meters in Ricochet.
In matchmaking, survive three vehicle explosions in a row with the Survivor package.
In matchmaking, score a goal in Ricochet while taking damage with the Resistor active.
In matchmaking, recover full shields from low health with both Resistor and Recharge active.
In matchmaking, effectively camp one location without dying for a full 60 seconds.
In matchmaking, get four consecutive kills with the Rocket Launcher without dying.