Ah the power of necro posts! Kovo if you want to link your map here I can take a look at it.
turtleband if you happen to still be stuck on that map and be browsing this forum a year later I have a solution for you that I wrote up before I noticed how old this thread is:
turtleband, the crash on your map is caused by the projectile shooters in the middle of the map. You have them linked to retrigger the TimerTriggers which creates an infinite loop. TimerTriggers go off by themselves on the set interval. If you remove the links between the three projectile shooters it should run fine.
Looking at other parts of your scripts it looks like you might not 100% understand how linking works. If you link two scripts (ctrl+alt+left click) if causes the original node to run the other node, this does not only apply to trigger scripts. Your idea of the companion is very interesting, keep up the good work.