Of note here for those who haven't played yet. If you look at the his inventory as he goes through what appears to be his equipped items, actually what happens is you have device points to "purchase" your weapons. This has changed a lot over time, but the concept remains the same. Basically you have access to any weapons/items available to your class. Example, the Assault has the grenade launcher, a few versions of a chain gun, and a few versions of a rocket launcher for his primary weapon slot. Now what you do with these points is purchase "ranks" of these weapons. So at level 1 you will obviously have very few points so you will only be able to buy rank 1 of only a few weapons and items. Now, this doesn't mean at max level you can just buy max rank on all your weapons. If you notice in that bottom panel in the video, there are some slots 0's and some with a 2, and he is at 15/15 device points. I'm pretty sure that is the max you ever get. I think this is a pretty cool feature as it acts as a mini talent build if you will. Only substitute talents for weapons.
Later in the video you can see the talent tree's, so even those are in there.
