Figured it would be fun to also show some concept art to complement the game screenshots, so will update this thread once in a while!
To start, here's a look at a few items not shown at all so far - grenades and mines:

These are all separate items, and useful in a variety of situations. We'll delve deeper into this later on, but be ensured these are both a hugely useful tool for you, as well as a deadly threat if on the receiving end.