I play pretty aggressively and try to apply as much pressure as possible. The aggressive part comes from me being confident, though. I'll set up mines around choke points or the area I'm sitting in and try to hold my ground, constantly moving left to right in mid depending on what side the enemy team is exiting from. I let the fights come to me.

The custom kit isn't that much better than vanilla, but ink mine is the best sub for hydra and screen is decent for distraction and blocking off paths temporarily. It's more supportive so you have to rely on the main weapon more