No Advice at all?

Starting to think the kill 200's don't work. I dragged a whole map(tried with different maps as well) multiple times and killed them all with missile barrage and still can't get it done, tried missile barrage till focus ran out, then frag grenade till I ran out of supply and back to missile barrage with a fast recharge rate of focus, dragged four groups of horde enemies plus all that was in the pathing to them, cleared the map in a few barrages and nothing.

Be nice if a MOD or someone of the likes would confirm it's working as intended.

Finally got one of the 200's done not sure how I'm going to do the one with 4 levels or higher though

Will try the Ordo guys didn't even consider that as an option.

200 kills in 60 seconds was a lot of work dragging the whole map around and then mass aoe's everything

Well I got the two purge in 30 minutes using a combo of the ebony void crusade and the ordo mission, thank you for that.

At same time completed the two missions without using belt or armor skills.

Last one to do is 200 enemies in 120 seconds at least 4 levels higher, however I am out of Ivory crusade tokens at the moment where I completed the 200 in 60 seconds, so will save up and try that map again. Any advice on which other maps to use, what combo of weapons and skills, I am a level 93 crusader using frag grenades, missiles barrage, chainsaw and shield, and a heavy bolter. Almost all of my skills revolve around staying alive, using grenades and missiles barrage to clear out small enemies, chainsaw and shield to take on easy armored targets(60% chance to change into armor breaking attack skill) and the heavy bolter as a last resort when I can not jump into a large group of enemies such as doing level 7 plus missions, slowly pick them off using either the fleshbane attack or the armor breaking attack(left and right mouse respectively)

Thank you for all the help so far