I did it on heroic with a certain combination of skulls on - say for Cortana (the level you were on about before) I put the field promotions one on too because flood don't get field promotions to my knowledge. I seem to remember having both grenade skulls on and the only difference I felt was that they dived further away from them so they didn't die from the explosions. The second grenade skull was meant for enemies to throw tonnes more but they didn't for me - until I tried it again later and they threw tonnes so I think mine might have glitched making it easier for me.
Its hard trying to get the achievements when doing co-op as there are the same amount of enemies but shared between 4 people instead of 1 - I would do the meta by yourself (its easy)
Its hard trying to get the achievements when doing co-op as there are the same amount of enemies but shared between 4 people instead of 1 - I would do the meta by yourself (its easy)
).
![Torch [P4]](/styles/overclockers/avatars/4.png){kind=avatar}
