I made a custom turret out of the battledroid model but it won't aim up and down. The log says: "Mounted turret "cis_prop_sniper_turret TURRET1" node "aimer_az" not found". The strange thing is that "aimer_az", as you might expect, controls left/right rotation which the turret is doing fine (this aimer is the actual legs of the model, not a null). I based the odf off the chaingun tripod from the assets, so I'm not sure where I went wrong here. The second issue is that I gave the model very basic cubes for collision (one for the body, one for the head) but for some reason they aren't working in game, and shots only do damage when aimed between the turret's legs.
Model hierarchy from xsi: