Is there any ways to grind T1 achievements quickly

As the title says i want to know if there are any quick ways to grind all T1 achievements on weapons, specialists and vehicles

As i am in asian server normal multiplayer matches tend to have empty lobby so i mostly play portal and solo to grind

But in portal some matches is not getting count towards mastery points ? Cuz maybe i was in Ai matches

Please help me out here

TIA