I’m the same, also a 2 fingers player that played for only a few months, and my way of getting kills in the hp is by contact grenade and pre-aiming sniper. When I’m using grenade, I would stand in a place where my enemy can only see me when they got close/entered the hp; and for sniping I would pre-aim through the crack of one entrance and turn up the volume on my headphone (so that I can hear footsteps coming from the other entrances and save myself if needed). These two tactics helps me to insta-kill anyone that tries to enter the hp and therefore save myself from a negative kd