Challenges Are Annoying

Challenges should be kept specifically to the class and its main weapons.  Why am I doing a "get 20 kills with a sniper" for an LMG unlock?. Its annoying because Im forced to play ouside my playstyle and I get bored and log off.

Im not interested in playing as a sniper in any way, but Im being forced, which takes away the fun in how I want to play.

Personally, i never liked challenges. But i get why you have them: progression and player retention. But please just make them class specific. NEVER force the player to go far outside their playstyle because it feels horrible and boring. 

Cheers.