Use your faction chat.
If you get anything other than friendly help, consider switching factions.
Period
Those "evil units" that you hear some chatter on about here on the forums almost always have some players active in the chat and they'll be willing to help you out.
If you see someone being a dbag to new players in the faction chat report them. If they are wearing tags, IE I have RMA tags, in front of their name, come ask on the forums which unit that is and explain why you're asking.
I promise you that anyone in the bigger units that we've organized in Marik are doing that we'll do our best to make sure it stops and at the very least we can make sure they don't represent us while doing it. Most of the bigger faction units are going to operate in similar fashion because we want our faction, units, and MWO to grow.
Seriously, use your faction chat and it will help immensely

P.S.
PGI, your CW interface is next to impossible to decipher without a lot of help. You really need to work on the social tools and making the map easy to understand in regards to the attack and defend queues and how they work.