The iron sights turned out to be more fun and easy to make than I originally thought. First, I was planning to use sprites to make them, but last time I tried that, it didn't come out well at all. So, instead I used models. They look pretty good, I'd say (I uploaded a pair of screenshots so you can see.) There is no sights for the M37, simply since there are no sights on an M37! It'd be pretty pointless anyway since it's pretty much shooting a blanket of pellets whereever you're facing.
Also, the first campaign maps have been started, and will include items in the maps.
My item system will be more like that of Quake2 where you can actually carry the items with you, and use them when necessary. However, most items won't only work for a limited amount of time. (I want to avoid them seeming like powerups.) So far only a gas mask and health are in the works. I need to come up with more item ideas.
I may release Beta 3 early, and only put in a few of the Campaign maps, since I have been adding several other things. I will just see how it goes.