It doesn't look like you can change loadouts for any class except the primary four on battlefield.com yet, so tanker, pilot, cavalry etc still need to be tweaked in game.
What makes you say that? Are you experiencing issues within the game which suggest it's still a work in progress? Maybe not quite like the scale of BF4!?
TBH I think it's more unfinished than BF4 was, the battlefield.com career companion not being fully operational being an obvious example (At least in BF4, battlelog allowed you to change your loadouts on release).
There's bound to be a huge amount of re balancing that needs doing, but it's hard to tell while while most of the weapons are still locked behind the free-to-play grindwall.
- There's the odd crash going on.
- The server options are limited, the server browser puts you on a different map to the one you selected, and you can't even play operations mode through the server browser, it's matchmaking only (although you can bring your squad)
It looks like there's a half decent game in there somewhere struggling to get out at the moment.