i wonder if the CI2 mother-hen ship could appear in regular CIU missions, though i dont know if thats allowed (even with a poll or something)
the first mother hen ship encounter spawns in chickens at around 25% instead of 50%, and when escaping it doesn’t give any more points for shooting it, that was a nice detail that probably should be back in
there are some other scoring details like chickens giving different amounts of points depending on their shirt color or the ci2 bonuses like treasure and mystery
the terminator chicken waves are just a copy of the version from ci3 instead of the original from ci2 (spawning from the top only, without a limit)