Thanks for your answer but I get the same result with your settings.
I've tried setting pmcbot to zero instead of setting exusec to zero, also no change.
As an example, when two groups of two rogues spawn they will attack each other however they will not attack their teammates. It also turned out that all rogues spawn marked as "boss". So how do I manage that the different groups don't attack each other. Maybe it's also bsg conditional and not solvable.