The 2007 Shadowrun shooter for Xbox and PC.
I played this game for, probably, hundreds of hours. It has an amazingly adaptable skills systems, allowing for experimentation on the fly. I see it as an early progenitor to the current wave of skills/ hero based shooters.
It suffered from a paucity of content and to be entirely frank, it didn’t work online when it was first released. That kind of killed any momentum it could have had and justifiably so really. I think it was scuppered by Microsoft forcing cross platform play onto it.
Those of us that stuck with it still hold incredibly fond memories of it even now.
It is actually playable on backwards compatibility via Xbox one.