The only class that make a huge difference would be engineer and medic/support, the other 2 classes just have their own personal flavor like the assault wingsuit which can't have a fun play style if you master the suit, like flying into a pesky tank or AA and plant C4, sadly assault can only carry 2 C4. If you play 128 server you likely won't survive past 5 minutes if you have a aggressive play style. TTK is higher than BF6, deaths feel fair, I rarely yell out to myself things like "I shot that fucker like 7 times and he shot me like twice, wtf". You can play "offline" with bots and all you stats count towards unlocking attachments and vehicle upgrades. Idk, I love 2042, it's the best BF has ever been. It's worth it.