If you see a bunch of weird people all spamming heals, barrier and purge with impulse going off continuously and you aren't lagging , I am reliably informed that you must move out of the way.
Crouch if others are crouched around you.
Stop healing if your crouched as you'll be revealed.
The mission board for missions give nice XP, AP and Gold.
NPC's can alert you to the direction of nearby stealthed attackers.
Use Stone Ballistas on walls around the doors, don't actually aim for the door.
Learn to read the map.
Do a bunch of scouting missions, they give you a good idea of how to move to remain undetected and gives you xp for exploring basically. Plus you learn about the different keeps and what not you are gonna be attacking.
You don't need to join a group with some nerd demanding you get on TS so he can play army man...
Haha, don't we all know that guy.
But in all fairness it's a bit messy to type in group chat during fights. Why TS or VoIP users have a slight advantage. It's so much easier to say "incoming massive banana train from north-east, back to farm" than typing it out while you're drowning in fire and arrows. In my opinion of course, since I'm a slow typer.
Topic: Learn which siege weapon goes where, to avoid being the laughing stock. Don't know how many times I've seen people trying to siege the main gate with a meat catapult, instead of putting down a ram. It looks super funny though.