So my list, might be partly the same as what others said but the hell with it!
- Fix the skill sets of all classes, some classes can do things they shouldn't be enable to do, or the other way around. - General units/Ballista units.
- Reduce the damage of the Axe, or change the speed or something to reduce the OP'ness of it. It's incredible. It one hit breaks a shield, and it can one hit kill other players.
- Make the Catapult more useful, as on this point I barely saw any kills being made by the catapult. While it should be the siege weapon that gets the most kills. (Also because they are rare as you can't spawn with them)
- Other way around with the Ballista's. Reduce the hit area. Like many said, it shouldn't be enable to break entire formations. And kill 20 people at once.
- Make a class for the General staff with the bearskin and the Eagle for example on a horse. At this point those rank classes are way to similar to eachother.
Will get some others on soon...