Can Skaven take a One-Eyed Grunnock?

[Lord Krungharr]

From the Skaven thread, someon pointed out that  Skaven cannot take allies.  Does this mean they can't take a Mercenary like a One-Eyed Grunnock?  Are those mercenary megagargant rules in the Sons of Behemat battletome or also elsewhere?  I just did a web search and nothing popped up immediately.

[Adamcbutton]

The rules are in the Sons of Behemat battle tome. From what I can tell, yes you can take a mercenary giant as skaven, it says “any army can include a Sons of Behemat mercenary”. However, the mercenary is treated as part of your army, so would limit your battleline choices to just Clanrats and Stormvermin. 
 

it’s worth noting as well that the rules don’t actually restrict Skaventide armies from taking allies - in fact, with a Pestilens general (and maybe all Pestilens units) you can take nurgle allies. It’s just that under most circumstances, you don’t have any. 

[Lord Krungharr]

Oh lame!  Guess I'll have to use it with my Beasts of Chaos then.   Skaven just hate everyone don't they