OOC: Both 01011000 and Ortzhaka can fill the rest of the group in on the basic stuff about Orks:
-orks are extremely warlike, pretty much everything they do revolves around battle, violence and being 'da'biggest'
-they're extremely resilient physically, surviving injuries that would irremediably cripple most other known species
-they multiply with amazing speed
Additionally, Xerael knows quite a few more bits of information:
-Orks multiply by spores, which they shed from their own bodies quite often, so every place an ork has been for a while has toe potential to have orks popping up after a while
- Apart from having their own psykers, the Ork race seems to also have some sort of species-wide latent psychic energy, as some things that make no apparent sense work merely because the orks as a whole think they do. Notable examples include red ork vehicles reaching greater speeds, yellow painted rockets being more destructive, and most of Ork technology.
Feel free to pass on this information to the rest of the party as you see fit