I've thought about giving ALIENS a shot (after this and a few other edits; gotta get the hang of this first!). For one thing, I always felt the gun sound FX were a bit on the wimpy side, so I would definitely replace them with something more bassy/boomy (PREDATOR or DIE HARD would be good examples). I "may" consider making the smart guns actual plasma/laser guns (this IS the future after all), but that may be a little much - it would definitely have to be tested to see how it looks and sounds.

I can't think of anything I would change visual FX wise (other than giving the gas giant a ring to match the 1st film and a few other things), but sound FX could be improved and definitely some elements of the script. Don't know how I would do it, but I always thought it was stupid that a sergeant would wait for orders to RUN AWAY (I always thought the whole point behind sergeants was that if the officer became incapacitated in any way, they would take charge), so I would try to re-edit that scene to show a more realistic portrayal of military trained troops while still coming to the same conclusion.

Don't know what to do about the "Alien Queen hanging onto Ripley's endoskeleton super foot", but that would be one thing I would try to address...

Even so, my take on ALIENS is that the Queen is essentially the same type as the Alien in the first movie, but mutated due to radiated colonists (namely Newt's dad) being the host... so in essence we have a wasp-based creature mutate to a bee/ant-based creature, with the "bone-headed" Alien warriors being weaker, watered-down versions of the first film Alien (which would also explain how much weaker they are - remember that the Alien in the first film survived a fusion engine blast from the Narcissus).