Should have written itself...

Rating: Null/10 (18 August 2004)

With both the Alien and Predator franchises having so much backstory...you'd really imagine that it would be easy to come up with a plot that fits...and doesn't mess with the basic pureist 'facts'.
I'm not even gonna go in-depth about the laughability of the tinkering with human history and messed up gestation cycles...cuz I'd imagine they were just hoping we'd ignore that stuff.
If it wrote itself I think it would go something like this:

most importantly, it takes place shortly after Alien 3...the Wayland character actually being the same person. He's (previous to the start of the film) found a frozen mother alien...but can't wake it up. This is why he has to trick an expert into coming to help...and this also explains why everybody has guns.

the Aliens always adapt...and they overcome the Predator confinement/hatching restraints shortly after the mother is awoken. in the same way as actually happened in the movie.

the Predators show up at the END of a battle between human and Alien...in which we're basically getting our asses kicked and just helping the Aliens reproduce.

after a savage fight in which three Predators are fighting way more Aliens than they should be...2 Predators are killed off (not by the same flippin' alien) and you have one Predator a maybe 3 humans...Spud and the spikey haired girl should be alive, too. Spikey haired girl is part of a TEAM of android commandos.

we already saw the mother alien fight in the other movies...so...go the route of Alien resurrection and give us a new Alien: a Predator/Alien hybrid...this kills the last predator...and the protagonist kills the last Alien.

The Predator mothership shows up...but as it's leaving...the mother Alien is attached to it.

Finally, an epilogue involving Wayland 'rescuing' the survivors...but suggest some more duplicity on his part...eggs in the back of his ship...whatever.

or something like that...;)