The skill-shot way is to dodge and then wait for his little stop animation. If you hit him in the back of the leg it'll do a temporary armor crack and then a second shot on that same leg within a few sec will kill it. you'll notice a little flame on his leg that indicates you've hit the first shot correctly.
But the other suggested ways are easier to time, especially if there's a lot of Chaos going on
Ill keep my GL + supply pack, thanks. Triple the capacity and double refills is just too good to pass on. So what if I don't do jackshit to heavies? We have stratagems tryhards with quasarrecoilless autocannons for that!
I haven't tried the grenade launcher / supply pack combo yet but it seems fun. I'll have to check it out. Honestly I don't use the Autocannon that much either. I'm an EAT man, myself.