Once you kill your your tower, look to start ganking and helping teammates kill their tower, while farming neutrals in between
Melee charge + Pulse lets you farm any creep camps you want, make sure you utilize melee charge heavy to reload your gun
Convince your team to run urn, or run it yourself with enduring speed, try to farm neutrals aggresively stealing enemy neutrals when possible
Look to ult enemies who just used their movement ability (for example an vindicta that just landed)
Don't forget your combo! Ult -> Heavy -> Charge -> Heavy (duration extended helps gurantee this)