Wish Energy Orbs On Defense Missions Wouldn't Magically Dissapear :p

[Kabeta]

I was playing defense mission allday and I wanted to do some solo on caliisto. So i mostly melees waves 1-5 so i can grind for energy orbs around the cryo to save for when the time was right. Well hell right before the end of wave 4 all them orbs just dissapeared and I havent even used any of my abilites at all, but funny how the ammo and everything else seems to stay there. I wish the energy wouldnt just dissapear like that, it would make it more challenging and adaptive for the more difficult insane waves against the infested and all the others. I hope others would agree with me. I mean either way is fine with me. It just would be nicer to not see them dissapear lol.