Call of Duty Mobile Started from Level 1 and tips

i been playing cod mobile for 5-7 days because my account was gone its level 32 with orange tier items so now i have to start over from level 1 it was insane.

Perks
Agile+Quickdraw = ADS Quicker
Skuller+Stock = Better Strafing

Hardline
use to level fast, adds more score

Demo Expert
20% more damage with explosives
mines, rpg, hunter drone, missle, nuke, molotov

Tracker (very important!)
you can see enemies with traingle red lines, and if you dont have uvs on the match.

Guns that i use
1.LK24
Damage 45 / Fire Rate 60  /Accuracy 67
2.Artic-50
Damage 85 / Fire Rate 30 /Accuracy 60
3.UL736 
Damage 70 / Fire Rate 60 /Accuracy 45