More suggestions: 3) Longer, more varied missions. The game is a lot of fun, and the skill/weapon branches add a great dynamic, but the four or so same missions get kind of tiring.
4) Different landscapes. I get that this is all based in one city, but you could maybe create suburban housing divisions, public parks, a forest, indoor missions, etc. Just like the missions themselves, the repetitive map loses its appeal after a while.
But with all that said, this is a solid, highly entertaining game. Kudos!
A couple of suggestions for the sequel (which there should definitely be):
1) Random pick-ups. Maybe power-ups, weapons with limited ammo (last only for the mission), bags of cash, etc. Maybe even have a search function, a la Dead Frontier.
2) Flashlight upgrades. Please, please, please put this in! A dark atmosphere definitely lends to the terror, but not being able to see enemies right in front of you is so extremely frustrating (especially when they're just outside of your flashlight's range and lobbing clods of deadly mud at you). It's the main reason why I abandoned Dead Frontier, for as fun as that game is, it's just way too dark. Heck, even instituting days that turn into nights (when the hordes really come out!) during longer missions could be cool.
So the dark zombies throw dark clods of mud in the pitch black night, while you whirl about in all directions trying to find where you're getting attacked from until you're murdered by said mud. Please brighten the levels.
Just a couple of suggestions, noanoa: How about a command to launch the little sisters, and allow them to only be blown up by your direct shots (i.e. not by penetrating bolts)?
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