This is a great game. I only got to play a handful of levels and a few multiplayer games, but so far this game is fantastic. I'd even go as far to say as this is better than Black Ops 4. It's more realistic all around. More realistic military combat is on par with real life military missions. The online portion is fairly decent. The only negatively aspect is the lack of game modes as of right now and the lack of multiplayer maps to play on. As of writing this review, (1-7-20) there is nothing to return to after playing for a couple days. However, that doesn't mean that there won't be something to return to in a future update.
Verdict: If you love games like Rainbow Six Seige, then get this game. It has a lot of the realism that Rainbow Six has, except with a full-fledged campaign and a spec ops mode that I haven't even touched yet, this game is surely to be worth your time.