Thanks, I'll note that.
Unfortunately for me it seems that creating such class system will not be possible for me with my current pawn skills.
When I began writing what ablilities a player will have according to his level after respawn I realised that only method I know to do that is making a switch(). There would be one switch for class and one for player's level - basically switch in switch.
Saving and loading data from nVault with pInfo[33][Data] array is still mysterious for me.