I found out, that the dwarg master is really vulnerable to laser...
So I keep my omni (turbo)laser with an collimator - only takes a few shots to take out a master. The drawback is that you have to get close to it...

As soon as I try to loot slave coffins from a slave camp, the game crashes.
Oh, Im using .99a.

The site seems to be down. I only get an error...