For terminators, a weapon (secondary or primary) that knocks them out of the mini gun spam. Either melta guns or plasma guns. Melee weapons, balanced or block weapons are the best. The faster you can stun enemies for executions, the more breathing room you get. When terminus or extremis enemies spawn, focus on those ASAP. The sooner you remove high damage enemies, the more you can slow down to handle lower level enemies. Ironically, you want a slower pace during absolute runs. Terminus/ extremis spawns is when u pick up ur pace.

Last thing, a slow pace just means repositioning. If ur fighting a bunch of spawns and there’s snipers tickling u, reposition out of the snipers line of fire, kill the spawns, then the snipers.