I like the style of the previous Last Stands a little bit better than this. For some reason hordes of zombies come out of the ceiling and I can not get my companions revived. I say a Last Stand 3 should be made like the others with better mechanics, more story and more(weapons, survivors, etc).
I think you should be able to switch to your secondary weapon WHILE reloading the one in your hand. If I run out of ammo in my main weapon I have to wait for it to load before I can switch to my secondary. This really defeats the purpose of having a secondary weapon. The secondary should be used for WHEN YOU RUN OUT OF AMMO. Not after it reloads... + If you found this irritating as well.
I think they make a new one with better graphics, but with better mechanics as well. Sometimes they just retreat even if they have a tank and even if the zombies are far away... + to make a sequel