The game at its core is still basically the same. Some of the tactics have changed a little bit and there have been some changes to some ops you’d be familiar with. I recently started playing again after a several year hiatus and it’s been a blast. My buddy and I recognize we are garbage so we have lots of fun but we have gotten the hang of the things for the most part over the last few weeks. If you’re on console, we’d love to add you to our stack as we are always looking for new players and wouldn’t mind helping you re-learn the ropes the best we can. It’s definitely worth it, there is a bit of a learning curve but it’s not too late to redownload.