Straining, you can see past the portcullis and see that there is a bend in the hall, but you cant see any further from here. You would have to lift the portcullis.
"I been wanting to try out this new & improved cutter. Let's do it!" Berz pauses and looks at everyone else. "...if you guys are ready, I guess..."
"CHARGE!!!" Berz opens the door and, if he sees anything insectoid and non-sentient looking, charges and attacks it.
(Ok, just clearing that up.) Berz charges in and swings at one of the 5 centipedes the open door reveals. (d20+11=27: Hit; 1d12+2d6+1d6+7=35, 1d6=3) One very dead centipede. He take his cleave, (d20+11=19: Hit; 1d12+2d6+1d6+7=27, 1d6=1) {Vicious damage=4, Vampiric health gain=5; no net loss} Anyone else?
Torma rushes behind Berz and swings at two of the remaining centipedes. [+6 ; 1d8 +3 +1d6 ] [+7 ; 1d8 +4]
Rantic Dragore's lips curl in a sneering little smile. He runs to the door opening and bares his teeth as he says: "DIE!" Rantic throws his Scythe to the nearest still living centipede ((+9, 2d4 + 5)).