I agree with pretty much everything Voodoo says on the subject. Aliens has somehow been misinterpreted over the years as a dozen marines walking on the corpses of Aliens like the Doomslayer does on demons. In reality there are only like 30 plus on screen deaths for the Aliens, and there are still plenty chasing Ripley and Hicks at the end of the movie. If you take out the sentry gun scenes the DC adds in, and just go buy the theater cut.........then the Marines basically survive and never win their battles. They are constantly in retreat. The Aliens do die, but that is going to happen when an unarmed attacker attacks an armed defender.
In this game, you are basically the doomslayer of the Alienverse. I think I lasted to wave thirteen on horde mode playing by myself for the first time on intense. It's fun, but it definitely doesn't reflect what is seen in any of the Alien movies, and definitely feels closer the the darkhorse Aliens are only dangerous as tsunami attackers (and yes the tsunami comparison is used in the EU) mentality that the majority of DH titles were burdened with.
I consider the EU and the movies to be two different things, so this doesn't bother me in any sort of way other than this is about the millionth time I've seen other creators look at Aliens for inspiration, and somehow only come away with the Aliens are ants, and Colonial Marines are the boot analogy.
It's not a bad game, but I still await the Aliens game actually inspired by the second movie. Where each alien encounter could be lethal, but you are not slow as piss like you are in isolation (all these survivor horror games are bullshit in how slow people are, especially ones where your character is in law enforcement or military) and have a means to defend yourself. So far the closest still remains the original AvP. But it was before the era of interaction, and is old AF. That take needs a graphical update with an improved story and immersion. It's not so much that AvP is not EU, its more that the Aliens had the speed advantage over EVERY other species, and could rip a human to shreds in seconds. You as a marine player had to locate and stop them while they were across the map. up close you were sliced and diced or acid would kill you.