Yeah, I try to stab, but my Long Bardiche only does 20p, and all the smart enemies know my only viable attack in that hallway is a stab, so they are always ready to block. Besides, polestab always bounces against facehuggers anyway. The facehugging 1hers are the only ones that can hit anyone in those hallways anyway, them and maulers/macers.
The other day I was on the wall of a siege castle with narrow walkways on top of the walls (almost like tunnels), playing defense when the walls got overrun with attackers. There was a clump of about 6 attackers in a circle around me, trying to kill me. I survived for at least 30 seconds with 6 guys swinging at me, but I couldn't hit them and they couldn't hit me (I wasn't blocking either, as usual). Everyone's swings would just get caught on other players/walls. It was comical but pathetic.
I have a feeling that in actual medieval combat, walls and nearby allies weren't the impediment to melee combat that they are in cRPG.