I'm completely new to Mercs (and fairly new to the whole game), so I have a few questions about how to use Mercs when you're not using them as your main faction.
1. I can't use any Merc warjacks in another faction, period, unless I have an unbound game with Merc warcaster as my second caster, correct?
2. Or would having some sort of jack marshall allow a Merc warjack in another faction with a single faction caster?
3. The Merc Colossal - which contracts is it available for?
Basically, I currently play Hordes (Legion) and am looking to expand into a Warmachine faction. I'm trying to determine if a Merc contract would work for me or not...