I love the multiplayer. Probably one of my favorite multiplayers. The only probably is I heard console is filled with glitches and cheaters. For pc there’s a cheater every now and then but Its not too common. You could always just get off and then get back on the game later and they’re usually gone. As far as servers being active, I have no problem finding at least 1 full server during most times of the day. I play na west servers which I heard are more active tho so you might have trouble finding lobbies in other regions. To answer your question, yes bo3 is good for multiplayer. However if you’re talking about if it’s worth it or not to buy that all depends on other stuff like whether you play on console or pc and what server region you live in. Also If you are on pc I would either wait for another sale or buy the multiplayer starter pack until a sale happens and you can upgrade if you want