I need help on the last skip of office complex, I am having trouble finding where to put the first grenade, If it is to close to the door the zombies/headcrabs will block me, and if to far and I will just hit the frame of the door. I saw Tmob doing a different version where you use a zombie is this faster/ easier?

P.S I am an idiot and got locked out of my discord, I also suck at bms

Doing it zombie way is not easier, it's way too inconsistent (about 10 % success at best).

Don't boost from the stairs, break the window that's to the left of the stairs and do the boost from there. You won't get blocked by zombies there.