Map design.
Whilst I've so far enjoyed the beta, the map designs are a little disappointing. In my opinion the maps are far to open. Not in the 'you can see miles' way, but the fact that there is seemingly nowhere where you can even attempt to hunker down - no not camp, and defend a flag/zone. Every room seemingly has multiple entry/exits and every location you can be flanked from multiple directions. The maps, so far have been the bad old days of the capture, run to the next. Capture and move on. Rinse and repeat. Even if you want to sit and defend a flag, there is nowhere to do it.
Of course we have the usual issues of visibility and telling teams apart at times and the nigh on impossibility of identifying classes. As for classes, the weapons need to be locked, or at the very least lock LMGs to support, AR to Assault, Snipers to Snipers and maybe carbines to Engineers. Happy for DMRs and PDWs to be used by all if they must.
First impressions are half decent, just the game seemingly just promotes run and gun rather than being able to mix up play styles.