change spawn locations for hostile critters

[Mouse]

Just now on Cog1 we got four scorpions directly outside the arrivals shuttle, at least one of which then moved to hang out inside the shuttle itself and who happily slaughtered everyone the moment they joined.  Naturally, Goon1 apathy led me to have to take them all out on my own while multiple players including silicons watched.

Maybe make sure shit like that doesn't happen.