Originally Posted by
H Con
Orks - dey is weak in de biginnin of a skermiss, coz de gits an' squigs are un-Orky an' runny when de WAAAGH! is un-Orkily small. Dey's not sluggy or choppy eider, and de humies oftun slug so much at de biginnin of de skermiss that the squiggies get really runny. But you just wait till de WAAAGH! gets Orkily big! 'Den dere's NO runny Orks in de untire skermiss, see?
Tau - The Ethereal is their Achilles heel. If he dies, ALL the player's units gets a damage, morale and health loss.
Chaos - Not as tough as the Space Marines, but there are more Chaos units in a batallion. Additionally, some chaos powers may backfire completely, and their Daemon units are EXTREMELY vulnerable to certain Space Marine units.