Are you playing the Battlefield Hardline beta? I did, briefly, but I should give it another chance. Especially now that all of the currently implemented weapons and gadgets have been unlocked. (The full game will of course have more content than what's playable in the beta.)
If you're on PC, you can get immediate access over here. There's also been an update that fixes a few types of crashes and integrates the "netcode improvements" from Battlefield 4.