bansama: To be honest, it's no worse than the original mechanic of the Alien Breed where you had to go around finding (or buying) all those damned keys. If you took the wrong route and ran out of keys, you could pretty much destroy all chances of completing a level. The new game may be linear but then, so was the original ultimately.
Shooting doors was also common. :) I agree, but in the original AB levels were a bit different, on one You had to close some doors, on the other run, etc, while here, You do different stuff, but in the same way. It doesn't matter if You're shutting down some vents, or restarting the engine, or anything else, it's always done in the same way, using consoles spread around the whole level. It lacks a bit of diversity, which i believe the original had.
It also feels small, every place You can go, You'll eventually have to go to. No pointless corridors. See, if there's a route that goes left, when You have to go right, You can be sure, it's either a secret place or a place You'll have to go later. And that makes the game feel compressed.
I am not saying the new AB is bad, it's just a bit disappointing, both compared to the original AB's, and the tributes [SG].
Perhaps it gets a modding community that sadly didn't go well with ShadowGrounds.
All in all, we don't get a reboot that actually reminds us of the original, but is also made by the same company. That's nice. ;)