Huzzah!
I got some nice friendly help mid way through, and I had to actively seek the big orange guy, he only started offensive manouevres when I topped his mate. Not sure if it's bugged ... ?
And I can't remember actually dancing on an alien corpse, but it's there in the hi-score sheet so I must have done it!
The sectopods are nasty. Thankfully they took a bigger dislike to the Army than to my agents. Good stuff though, some great progress.
Nice score Mendonca!
The colossus might not have attacked if you were out of his visual range while attacking (the aliens don't yet use Faction-wide knowledge of enemy positions, or even much of their own memorized data), and there is one other quirk about its behavior I don't want to mention because players could take advantage of it. Either way, I added him more to simply knock down walls and destroy the base rather than be a huge threat to your troops--he's slow and doesn't even have a ranged weapon, so he's not as scary as he looks, but he does soak up a lot of damage.
The jig score is just a hidden bonus you found--you don't have to actually do anything except stand on an alien corpse from one turn to the next.
And sectopods are always pretty nasty, but I'm glad someone managed to take them down. Shows that sticking more than one in that hangar wasn't overkill
After reading your post and others, though, I'm guessing no one's found the Area 51 experiment yet. They don't have those captured sectopods for nothing!