So I've been thinking about what force I want to ally my gk with, and I've more or less landed on Skitarii. This is how I am thinking right now:
Long range contra the cc units of gk.
Cheap troops for objective secured.
Dunecrawler for long range heavy support.
Really cool looking and nice fluff.
Only t3 with 4+ saves, cover will be a priority.
No transports, so getting troops to objectives far away will be a pain. However plan is to keep skitarii back and gk on the frontline.
You guys got any other pros and cons, or suggestions for other armies?