Tids
Chieftain
Late game i received a helicopter gunship from a city state, and in the promotions available Ambush 1 was there twice.
I could upgrade both of them and they each led to a different Ambush 2.
I didn't notice this in any earlier versions, but i haven't been using the gunships lately.
I also seem to remember getting an earlier unit that could get the ambush ability, and there was no duplicate (i think).
Playing with only Infoaddict as a further mod, not sure if its directly related though.
I could upgrade both of them and they each led to a different Ambush 2.
I didn't notice this in any earlier versions, but i haven't been using the gunships lately.
I also seem to remember getting an earlier unit that could get the ambush ability, and there was no duplicate (i think).
Playing with only Infoaddict as a further mod, not sure if its directly related though.