It will always be possible to unhardstuck your account unless your halfway through crim 3 so for those that think theyre cooked YOUR NOT. Thats when the sr gain starts decreasing (CRIM 3)
The method to unhardstuck is by beating the enemy team by alot of points for example in hardpoint winning 250-80, Snd winning 6-1 and overload finishing the game before the timers up. If you do this 2-3 times in a row you will notice sr gain gets higher. What also helps is not going negative and in hardpoiny hilltime does not really matter. In overload the overloads matter.
So main objectives:
Win by alot Have a decent kd but this isnt as important as the step above Play objective too especially in overload!
The most hardstuck account ive been on was gaining 19 sr in plat 3, now im crim 2 getting 130/140 a game on that same account.
Dms are open for more tips!