Alright.

When you go to PvP a level 2 monsterous race do you need a DM, should you take into mind the level difference?

When you go to PvP a monsterous race where there are no NPCs (Such as parts of the tunnels) Do you need a DM?

No, and no.

However, it's recommended to send a /dm message before any and all PVP in case issues arise.

(As an aside, I think if you are a level 8 whatever, it's sheer politeness to take the level difference into account. Just because we allow you to kill monster-race PC's for the sake of it, doesn't necessarily mean you need to. These are just my personal feelings however and should in no way be considered policy.)

(Also - don't camp Chudax. This is not counter-strike!)

Do you need to wait for an answer to the tell?

-EVERY- time you initiate PvP, -ALWAYS- send a message to the DM channel. Whether or not you can go without a DM responding depends on the area you are in and the NPCs that are around.