The only thing that gets to me is the whole ALIEN TUBES thing... How could there have been aliens on board the Sulaco before they landed on Hadley's Hope? None of Gorman's marines knew what they were up against.. But there were specimens on board? I'm hoping this will have some sort of logical explanation.
As for the mysterious egg in Alien 3, I think that was honestly just shitty shitty screenwriting. Not sure if it was Vincent Wards script that had that crap in it or not, but with the fiasco of a production that turned out to be.. I'm not left wondering how it got there, lol.
Think of it this way, the queen had an ovipositor that allowed it to lay eggs which she furiously ripped herself off of to chase Ripley, and sure, she could likely lay a single one as sort of a hive kick starter, but the other main problem is that once aboard the Sulaco she came out from her hiding spot on the dropship, chased Ripley for a few seconds, then chased Newt for like a minute tops, then spend the rest of her time fighting Ripley in the Power Loader... She literally didn't have time to lay the egg.
Anyhow, the main question is the one I'm most interested in because if this Is canon, it seems like one huuuuuge error. Meh. Can't wait to play the game tho!