From the description:
Weston Ochse's SEAL Team 666 follows Cadet Jack Walker. Halfway through SEAL training, he's still green but showing incredible promise when he's whisked away to join four SEALs—and their dog—for a special ops mission. Walker soon finds himself in a whirlwind of otherworldly creatures and events as he finds out the true nature of this “special ops” team: SEAL Team 666. Battling demons, possessed humans, mass-murdering cults, and evil in its most dark and primeval form, SEAL Team 666 has their work cut out for them. And it’s not long before they realize that the threat isn’t just directed against the U.S.—an ancient and deadly cult has bigger plans, and Walker is at the center of a supernatural conflict with the entire world at stake.
This book starts off with Jack Walker in the last few weeks of SEAL training, but before you know it he is the FNG for SEAL Team 666 and the action takes off from there. This is a fun and fast read, filled with characters you can care about and root for. Although parts are kind of odd it's in a good way. Looking forward to part two in this series. If you like Jonathan Maberry's Joe Ledger series or the Chess Team novels by Jeremy Robinson you should check this one out. A solid 4 stars.