Many Map Problems

i am trying to make a map and i am using a custom model that is supposed to fly in game and i have changed it in world editor but when i go ingame and then it is just on the ground like a ground unit... Next: I am trying to make the first 6 players on a team and the last 6 on a team but when i change it and go into the map i can only see one team member's vision...Lastly.. i hope... i am using a custom model for the Orc team's great hall and i place the starting position on the hall but when i start the game all the halls are random races and also my great hall starts out with another hall of another race with 5 of the worker units(usually humans) hopefully someone can help

Delete the "Melee Initilization" trigger. I bet it will solve the last two problems.

As for the first problem, remove the imported file, re-import, change the paths correctly, save, and then change the model file of your unit. Here's a handy checklist for what to do after that:

1. Does the unit have "flying" movment, or "hover"? It should be flying.
2. What is the unit's fly-height? Anything under 100 usually won't be noticable
3. Do you have any fly-height setting triggers on the map? If so, is it possible one of them is affecting this unit?
4. Have you tried using this action?
   
   Trigger:

   Unit - Set Unit fly-height to 100.00 at 0.00
   

I'm sure that will fix your problems.

ya thanks didn't have unit set to fly and so when iI start the game if I am just testing only my base appears is this what is supposed to happen but otherwise it fixed all the other problems thank you but i am having trouble with setting an ability because i am using it to attach a weapon but i want it to also be rain of fire and i have looked at the tutorial for attaching weapons but i want it to be a hero ability with the rain of fire effects but it is not working

Can you explain in English with punctuation? I honestly don't understand where one though finishes and one begins. Is the Rain of Fire effect related to the flying unit?