What I enjoy about the achievements and all the possible unlocks in BF4 is that they force you to change your playstyle. I usually play Engineer on vehicle-heavy maps and Assault on everything else, but because I still have to unlock some shotguns, I started playing Support with a shotgun on maps with a lot of close quarters fighting and am having a blast. It prevents the game from getting stale and an objective to aim for, which I quite like tbh. That’s something I was honestly missing in BFV for example. Tides of War couldn’t quite do that for me.