To me, Rainbow 6: Siege was a good follow-up. They solved a lot of the issues I had with CS (and COD), like stupid movements using jump, nothing to do after you die. They integrated some inevitable things into the gameplay itself: peeking pixels became a legit strategy, and now you can even make your own peekholes because of the destructible environment. You can use fixed and mobile cameras to gather intel, and share that with teammates, even after death. And the gadgets add a lot to game too, in regards to play style. I guess R6 it's not as sterile feeling as CS, so I understand if someone likes one and not the other, but to me, it renewed the fun for a good 700 hours.
When siege is working well and you have a team with you think it's the best multiplayer shooter ever.
They've dug themselves into a hole with the "new operators every N weeks" pattern, but the depth of the game combined with the ultimately mechanical thrill of an FPS is a joy
Yeah it's not without its problems. Inviting the friends into a squad was always a gamble, sometimes it works, sometimes it doesn't. One can invite the other, but not the other way around. We had game-breaking frame rate drops that only went away by applying very heavy handed workarounds. And I hated the "yet another launcher" - I bought the game on Steam.
That said, the game is a unique fun. I'm glad I chose to participate.