1. The strikers are placed on the 6 DU buff beam like that if you dont want to stack, but if you do stack, just point them that way. (I moved them off the little map there so you can see them better)
You just need 3k on minion hp, trap range, aura range, and tower damage/rate. It can carry 4 players on the last wave, you just need to heal things.
With higher stats you can build this, upgrade beams then afk the entire run soooo yeah.
The link below is me building the map and finishing it, its super long but you only need to watch the first minute and a half to see me build the whole thing.
I finish building the map at around 3:24