I love it too Crow :), and I know we're gonna make this rrrrreaaaaallllyyy good :). Here's a spoiler :].
Marine:
What is Berik?
Berik:
Weyland is giving me some bull again, they giving me the whole 'rights' : AGAIN. I gotta send some of you down there to collect a few samples along with some of the 'Suit boys'.
Marine:
Oh my fu-- , your kiddin' right? More of these Weyland boys? I'm just about tired of em'. 'COLLECT' samples your saying? You do know these things try to latch on to you right?
Berik:
That's why your going in there with them.
Marine:
I don't get paid enough for this , and I'm damned serious.
Berik:
What can I say, it's not my fault Rapone.
Okay, there is now a balance to the species (all of them).
HUMANS
There are marines, their not gonna' die as easily as they did in AVP, but their also not gonna be immune to acid as when LEX stabbed the alien, not a single drop spilled on her. Marines are also very easily beaten down by tail stuns from aliens, or headbites to the chest/neck.
ALIENS
Their acid is deeply effective in this movie, if spilled it can kill almost any other thing with it. THEIR TAIL, no longer can impail straight through, and lift it into the air. Their innerjaw cannot penetrate predator's mask, but at the same time, it can severely damage it and interfere with it's systems. They now can stun humans and predators, and the strength of the actual tail is increased. They can brake other species' necks with a violent single swipe. Aliens can also acid spit.
PREDATORS
Acid affects their armour, just as much as it affects marine's armours. Their masks are also weak to acid, as it can burn it off easily. They no longer use much range, and are more melee than ranged. Their wristblades no longer melts in acid, but their wristpads are screwed by acid. Aliens can also destroy their systems tempoairly with a tail stun.
Other information
HUMANS
Act more like the humeen in ALIENS. They are more tough but at the same time, alot more vunerable.
ALIENS
Very vicious, definetely the most vicious of all the three. And I DIDN'T overpower them, but I made them vicious and deadly. ALIENS they were too easy to kill, but still they can be killed. They also act ALOT like the Xenomorphs seen in ALIENS and ALIEN. Runners are slightly faster.
PREDATORS
The strength and bruteness of the Yautja seen in PREDATOR 1, and the smartness and cunningness of the Yautja seen in PREDATOR 2. They are way better fighters than that seen in AVP.
What has changed about me (lol)
I love aliens just as much as predators (mainly because I revisited the alien series, by watching all movies lol), and I've made them very vicious to match the yautjas. Humans, I've made them better, but they are also not that strong and tough.