Escape from tarkov BEAR reader x Rainbow six siege

Quick adviser. I do NOT own Escape from tarkov or Rainbow six siege, the only thing I own is the fan fiction and the OC.
You're part of the BEAR's aka. Battle Encounter Assault Regiment. The BEAR has allegedly been created by the russian government to uncover any evidence of the illegal activities of the Terragroup Labs inside the russian territory.
Also a quick note: I made this fanfiction because I was bored, so don't expect this book to be finished. BUT, since I really like the idea of this book I'll try to release chapters as soon as possible. And well, I'm kind of new to the story writing thing so I'll try my best! Any improvement ideas or criticism is welcome!