Two styles of game here, no?
Loved the original Alien Breed, often frantic finger blistering fun - then to wnadering through the mazes...
But I have a big soft spot for AB 3D, at a time when 3d games where developing it was actually playable with good design.
I know I did get stuck later on against some really evil critters with massive weapons for forearms & my lack of ammo. Never did go back, I tried the 9th level I think it was over and over: they always seems to kill me/leave me with no weaponry left!
I loved the touch with the "Beholders", a side affect of all my EOB playing