Funny, I just did the same thing except with no death counters. Mine just uses 1 more trigger per human cause I made each create in the other 4's spots but now that I come to think of it this could be improved.
I think it could be done without the death counters at all
I'll just fiddle faddle around.
EDIT: I cut it down to 5 triggers in the entire map!
Leaderboard trigger
Making computers enemies trigger
Kill counts trigger
Pair o hyper triggers
Attached. Thermo looked at it already