Definition: Tunneling is a deliberate targeting one the same survivor with the goal of eliminating them from the match as early as possible. Tunneling puts pressure on survivors that no perk in the game provides. So tunneling is currently the most effective strategy for the killer player. For the survivor who is being tunneled, this may not be very pleasant or fun. Most killer players don't care, including me. The easiest suvivor to tunnel is the one who is bad at chase. So if you are bad in chase this guide is for you.
1) Use anti-tunnel perks. “Off the Record” is the best option.
2) Ask your teammates to take a Protection hits if they unhooked you next to the killer.
2.1) Take a Protection hit if you unhook teammate next to the killer.
3) Prioritize healing before repairing, especially if you are playing against stealth killer.
3.1) Never heal next to the hook if you are playing against stealth killer. I LOVE PUNISHING THIS
3.2) Being healed next to the hook you were unhooked is a bad idea, especially if you have no “Off the Record”.
3.3) Healing unhooked survivor next to the hook is a bad idea, especially if you have no healing speed perks.
4) Go into hard stealth after 2nd hook. Repair generators ONLY if you see that the killer has started chasing another survivor. Repair generators somewhere on the outskirts.