Can't believe these haven't been reported:
The Imperial Legion Sword of Damocles' troops are able to spawn with javelins and refill them at the quivers. However, it's impossible for any throwing weapons to be picked up by them; including javelins.
The Imperial Legion Sword of Damocles faction's red armour has a bugged LOD. As soon as you move away from a player wearing the red armour, only the feet, hands and head are animated. The main part of the body is stuck in a T-Pose with no animation whatsoever.
The Court of Reveran/Byzantine, despite not having any throwing weapons, are able to pick up the pila thrown by the Invasion of Rome (Attackers). Either give Reveran some form of throwing weaponry, or remove the ability to pick up thrown weapons; it's too odd if you ask me.
If you make a box out of barricades, when it's joined by another box, you will throw your construction hammer without anything being placed. You'll lose all your hammers aside from the last one, which will be given back to you.
Various maps with bridges (Siege of Osigiliath, Dungeons of Death, Defend the Mountain, Siege of Pelargir being the ones I know of) often glitch out with players and/or bots falling through certain sections or being teleported around when encountering the bugged section. There is no pattern as to where the collision will glitch out.
My solution would be to remove the collision meshes for the bridges and replace them with the collision objects that can be found in Native. Or maybe not remove the collision and add the collision objects as a fail-safe?
The boats in Siege of Pelargir can be boarded, but they lack collision. Soon as you jump off the ramp that connects the boats to the map, you'll fall through the boats.
Siege of Pelargir also has funky steps; the AI always gets stuck at either side of the steps that connect the city to the docks.
Siege of Dale has the roof-tops of the walls un-blocked; this allows campers to just sit atop them and rain arrows without concern of being attacked. Adding collision boundaries will remedy this.
Siege of Dale's ramps are too small; Players often fall off when another wants to go in the opposite direction as you. Perhaps make the ramps wider or edit the gate to be open?
Siege of Dale has a glitchy wall. If you face the ramp connected to the wall with the long wooden steps that start from the ground (near the arena), then head left past the tower, you will sometimes fall through the wall, slamming you into the ground.