lol, when I read the top comment I kept trying to see a difference in their outfits, but I kept dying, so I played the game... Then I realized their dead bodies were the things camouflaging them. XD
... Panzergrenadier blitz on wve 2... Somehow managed to pin a couple down they team killed like they were insane. I ACTUALY MANAGED TO SURVIVE!! (how???)
explanation: the gardian of mana. the gardian of mana is actually pretty good buy takes about 100 energy. your sheild goes to around 2000 and your armor 5000 and all the damage you take gets recharged like, almost instantly. your normal blaster gets transformed into this thing that is about as good as the blue laser + double fire. its really useful against genu and entity. but you need a lot of energy so keep a lot of energy in stock. but if you take too much fire at one time, you can still get destroyed. upgrade to transform for longer time. rate good if this was helpful.