Ok, I just failed the first time on Bronnox. Brit does NOT retreat in my game even when her health went down to 1, she stood still and forfeited her turn instead... while my units were waiting down at the bridge to block her after she returns.
Other than that my other front is having a difficult time too. I found another bug where if you moved north a bit too much from your seige front, the enemy ionstars on the island to the far north will attack you multiple times. Either that or there really was 10 ionstars on that island... Any unit that strays a bit too far north is immediately destroyed by a barrage of 8-10 ionstar shots...
I'll reload now, but sleep first
Then work, then more BI2 over the weekends!