This is solar's new ufos in the attachment below by Solarius Scorch, no item levels defined in it so it's just an older version of yet more ufos without the vanilla 8 ufos. These r the item levels fr RAA:
###BEGIN ALIENITEMLEVELS
alienItemLevels:
- [0, 0, 0, 0, 0, 0, 0, 1, 1, 1]
- [0, 0, 0, 0, 0, 1, 1, 1, 1, 1]
- [0, 0, 0, 0, 1, 1, 1, 1, 1, 1]
- [0, 0, 0, 1, 1, 1, 1, 1, 1, 1]
- [0, 0, 1, 1, 1, 1, 1, 1, 1, 1]
- [0, 1, 1, 1, 1, 1, 1, 1, 1, 2]
- [0, 1, 1, 1, 1, 1, 1, 2, 2, 2]
- [0, 1, 1, 1, 1, 2, 2, 2, 2, 2]
- [1, 1, 1, 1, 2, 2, 2, 2, 2, 2]
- [1, 1, 1, 2, 2, 2, 2, 2, 2, 2]
- [1, 1, 2, 2, 2, 2, 2, 2, 2, 2]
- [1, 2, 2, 2, 2, 2, 2, 2, 2, 2]
- [2, 2, 2, 2, 2, 2, 2, 2, 2, 2]
###END ALIENITEMLEVELS
So fr what u've said shud be compatible. There r no item levels defined in Solar's new ufos either so 2 final points. Firstly am I better adding yet more ufos or solar's new ufos as all I want is the 4 new ufos. And finally if there is not an item level defined in a mod like the forementioned 2 mods how does the ai know what item levels to give them or does it just use the last mod loaded in to have a item level defined, which in my case wud use the one fr RAA(attached). Thanks for all the advice on this one as ur knowledge is far superior to mine as I'm learning on a trial by error basis.