How to define a variable before vehicle inits start?

I want vehicle inits to make use of variables to prevent having to write huge arrays for each unit's init but defining the variables in a game logic's init isn't fast enough. Is there a way to accomplish this?

---------- Post added at 01:28 ---------- Previous post was at 01:21 ----------

Actually I already solved it by embedding the init line in a spawned code with a waitUntil {!isNil "variable"}.