So far nobodies been able to get past the new Gman spot or the part where you kill Father Gregori.
The first room with the headcrabs might need the wires to break faster, or perhaps just take out the venom headcrabs that drop your health to 1.
The room with the 1-2-3 buttons seems easy to me but I can never complete it before it resets while other people are in the room. I don't know the cause of this but it seems just people walking near other buttons resets the whole thing. Most of the time this is the room everyone but 1-2 people die in.
I will edit this when I actually get past the father gregori room but I would definitely suggest putting melee weapons on the ground before the fight with gregori because guns weren't doing enough.
I REALLY like it otherwise and I'm glad you revamped Sasuke and I hope you keep working on it!