Remove the two objectives closest to Boderp spawn area on Sandstorm (raised platform, base of the radio mast; behind yellow generator... thingy.) They are a nightmare to both defend and assault, with attacking forces being forced to spawn trap to keep them locked down. The raised platform is clearly visible from within the spawn area, making it far too easy for people to kill anyone trying to cap it.
Back-scatter optics are a joke. There should be an option to toggle it on/off as it makes your scope entirely useless at distance. for the questionable benefit of being able to see through cover. Similarly, the decision to make Incendiary ammo only available on LMGs makes both Lv40 choices for the Rifleman largely pointless. Either I blind myself beyond 20' or use ammo for weapons I didn't unlock. Another hat would have been more useful.
Capping objectives (doubly so for Decoy) has devolved into a largely talentless war of attrition between rival gangs of noobtubers and grenade spammers. Opposing teams charge headlong at the objective, hurling all manner of explosive madness at it before dying instantly and repeating the process. Knockdown immunity while capping objectives would be nice; grenades can still kill you, but become useless as a blocking tactic which can rapidly become infuriating.