Respawn Limits + HideBody after Spawn

[Skyfire]

Im creating a small COOP/ SP Mission and i got 2 questions.
You should be able to play the mission alone, with the KI only OR up to 5 players.
1. If you play the mission alone, the KI should not respawn, how do i do this?
2. If you are playing with -5 human players, everbody should be able do die 3 times. If anybody died the third time, Game Over.
I would appreciate some help very much

I allready got the Respawn working with the description, i only need to solve the 2 probs.