Two Killer ideas, Blunt and echo location
The first killer will use his fist to fight, however, a punch isn't really going to cause someone to bleed. So have a blunt meter. How this works is a basic attack will fill 1/3 of the meter until the survivor is injured. This may seem weak but he can also charge his attack allowing him to fill 2/3 of it. This attack will send a survivor flying into a wall or pallet breaking it. The survivor will have to get up taking some time, the killer will check on his hand because punching people hurts. If the killer hits something else he will have a longer cool down because he just full on punched a wall and that hurt, if he punches a pallet it will break. When a survivor is injured they will have only 0/2 blunt meter meaning a full charged punch will knock them out and yes I mean knock them out. They will go blind unable to move, recover, and struggle for 20 seconds. Healing is increased. When knocked out, as time goes on they will slowly began to hear again before light returns. If a survivor was healed while knocked out once they wake up they will be able to stand and run fast. If the killer picks them up, the survivor will have a greatly increased wiggle speed. All charged punches will send survivors flying which means they can be punched into the exit, and into the hatch. When fully punched but not knocked out they will have messed up sound and visuals for some time. This killer doesn't care about a survivor leaving, he just likes punching people. Now he still sounds weak which is why he can yell, when he yells every survivor within 20 meters will be frightened and scream. The longer he charges his yell the more people scream. Survivors working on gens will mess up and get an adrenaline rush causing them to move fast but giving them exhaustion for 60 seconds. If this killer is in a chase longer than 3 minutes he gets angry, and the next punch will go through pallets instantly knocking out the survivor. Survivors downed to this will be gone for 30 seconds but will be at whatever health state they were when they wake up. The mori is him picking up a survivor, putting it on it's feet then boxing with it. The survivor will through a couple punches, which are blocked, then will get their neck snapped by his punch, killing them.
The next killer will have a mask which he can take on and off. When the mask is on he will be able to see the outlines of basic things within 20 meters, including survivors. This mask can be damaged if it's on when you get pallet stunned it will glitch out until you take it off and fix it. This takes 8 seconds. Once fixed it gains a buff for 30 seconds where it extends to 40 meters. There are also electrical devices around the map that he can activate causing a low sound that stays on until a survivor takes 10 seconds turning it off. 15 meters of the device is constantly reveled to the killer. The only way survivors can be hidden while the killer is wearing the mask is if they are completely still that includes not looking around, not in pain, not crouching, and not doing something. Gens being done can be seen more and more as it gets done. With the mask on no auras will be reveled. The more people on a gen the more he can see around it. His whole thing is you can't hide from me. An ultra rare addon would be he can see the whole map but he can't take off his mask. His mori will be him trying to stab the head with crowbar, missing until he hit its it, and he outline fades away.