The studio I work at is currently developing a FPS called Mech Mice Academy. It's playing style is reminiscent of older FPS games like Quake, Unreal Tournament and Goldeneye, with a little bit of Team Fortress 2 mixed in! We'd love for you to try it out and give us your feedback.
Right now we have 3 unit classes (Commander, Heavy, Engineer), 2 game modes (Skirmish and Team Skirmish) and 1 map. We just launched minor class customization (face paint and colour tweaks), and are working on a new map and a Capture the Flag mode.
If you are interested, here is a link to check it out:
You can also track the progress here: