No, never played MoC. But I am a big fan of Warhammer fantasy, hell, I'm putting together an Orc and Gobbo army right now.
Technicaly, everything in Grandara(my fantasy setting these guys live in) is neutral. Each induvidual chooses what they want to be (to avoid cleched drizzt clones), and they more choose which groups they are hostile/friendly towards. So, a single rattemenschen might be hostile to a few Orc clans, All Jukol, and be friendly to Asachi and Rostrodle, where as his best friend could be the exact opposite.
Most Rattemenshen though, choose to be hostile to alota people.