Random Brutal+6: Strategy??

Map: Temple of the past

Enemy: Masters & Machines (Immortal, Colossus, HTs)

Mutators: Transmutation: Enemies evolve on hits. Avenger: enemies buff up when friendlies die. Mag-nificent: mags spread everywhere. Outbreak: infested spawn continuously. Must kill all 3 bonus'

What do you do?!--, go!!