My team just killed Kaliks in about 30sec. All we did was use one 365 BlackHammer and 3 maxed ghorns. We started off by going to the right to where that suspended platform is and killed all of the adds there. Once it was just us and Kaliks, one person with a 365 BlackHammer would get constant crits as two people with ghorn kept firing all of their ammo. Once the two are out of rockets, we swap to any 365 primary and keep the damage up. The blackhammer user will then pull out his ghorn and lay into Kaliks. Should die before he can even start his "Devour Ether" ability, and the target to eliminated will have just spawned. This was done on the 360, and we were shocked at how effective it was.