I have played quite a few MMOs and one thing that I have noticed they all seem to share is the strategy. Sure you can change it up slightly but in the end it all boils down to He's a tank he's a DD and he heals. Really these strategies can be fun but they can get a bit shallow when you think about it. Because it all boils down to "use this WS... now, and now use this WS"

Where are the real tactics? It would be awesome to put archers on hills for height advantage, put DD behind enemies for back attacks, surrounding the enemies gave you damage bonuses, and keeping enemies in front of you gave defensive bonuses. And these bonuses extend to the opponents (of course they should be disabled for leviquests of lower difficulty levels to keep solo and small party players happy)!

This kind of system would make combat dynamic and give it movement as both player and enemy, struggle for the best position. Of course some things would need to be added to make it work, such as a sprint button to let you move into position quickly or quickly disengage an opponent and move to a better spot, and a slight knock back effect on WS that lets you keep your opponents where you want them (or where they want you if you're not careful!).

Here are some examples of how it could work.

Keeping enemies in front of you means all your defenses are on them, this gives you a slight bonus to defense, this just means that 2 or more players have their enemies in their sight (not on the screen sight but give them their own actual cone of vision and put it on the mini map during fights). This boost only goes to the people up front watching and anyone behind them, so if you have two Gladiators defending up front with all the enemies in front of them then anyone they are defending also gets the boost (because the attack has to get behind them first) this could be used to shield healers and archers, best used in a corner where the environment keeps the enemy directly in front of you the rest of your party can then attack from behind.

Surrounding the enemy is the best thing you can do, but it wont be easy as they will try to stop that from happening. When the enemy is surrounded you have the attack bonus caused from overwhelming your opponent, the defense bonus as he is right in front of all your players, and the people behind the enemy give back attacks dealing extra damage. But enemies will keep trying to get out, so you will have to time WS to make sure they stay were they are.

those are some of the ways that tactics could be added to the game. I would love to see an MMO where combat moves and actual teamwork and tactics play a part in the game.