If you like BF 2 3 and 4 then you probably wont like BF V!! The maps are boring after a few rounds, the classes are unbalanced and you can't see the enemies when walking around! The game looked good but DICE/EA ruined it again! I played every battlefield exept of 2142 and i can say for sure that BF V is as bad as BF One.
A few things that could change my view:
1. Bring spotting back!!!! It is frustrating that you can't see the players hiding with a MG. Sometimes you get killed 5 times until you finaly see the guy.
2. Give the medic class good weapons!!! The medic weapons are useless, you wont kill a player at a distans greater then 20 meters if the opponent is a decent player. Maybe if you are lucky and he misses all his shots you maybe get the kill.
3. Design the maps for the gamemodes!! In Bad Company 2 for example there were maps only available in rush or conquest and that fact you did feel when playing! It was so much better then the maps today because they weren't designd for all gamemodes.