You seem to already be glued to making an Extinction remake, so here's how you can make it better:

- Make it 1/3 size. It will still be HUGE, but it will be much more playable.
- Get rid of the Mythos. Just put in a second scarab, or make a new vehicle.
- Get rid of the jet. I don't care what you replace it with, just get rid of it.
- Get rid of the Nuke. It sucks.
- Get rid of the C4 and bomb. They also suck.
- Put in more teleporters and organize them.
- Make it 1/4 sized. I know I said 1/3 before, but 1/4 sounds better.