Spent some time with the single player campaign, it's ok but nothing special.
I did get a bug where the tank refused to move and the camera seemed stuck to one spot. The only things that seemed to work were the weapons and all they did was fire, be it very slowly.
Restarting the game didn't seem to fix it
I think I've still got a couple of hours left of the trial if you're about tonight mate.
TBH I've been a little underwhelmed by the trial version so far.
The weapons all feel different again, and particularly the support weapons feel next to useless in a lot of circumstances. I need to find the LMG that suits me.
The light tank nerf isn't too harsh, although you need to be careful not to get stuck surrounded by assault class.
What really annoys me is that the battlefield career page isn't up and running yet (as it was in the beta) which means that you need to do all of your loadout and purchasing in game. If you want to customise your tank for instance, you need to get the tank at the start of the round and then mess about configuring it while you should have spawned and be capping flags.
There's something about the minimap that doesn't seem right either. I know you don't show up anymore when you fire (which I don't like), but I swear people I've spotted don't always show up either.
Operations mode seems fun though, it could be the go to game mode for BF1. Whether it's balanced however..