As long as you use the correct weapons on the models (hellguns i think) and make sure your opponent is aware of waht is going on... shouldn't be a problem at all.
Dark Angels 1750 win/loss Record
Win - 23 (Belial helped wreck Ryan's puny Eldar)
Loss - 13 (Brice's Necrons wiped me)
Draw - 2 (The 13th hold out in alpha take and hold)