Introduction of workplace parking charges on a graduated basis. Designated slots charged at 50% of the daily rate of the occupier other wise the nearer to the door/higher the rank, the more you pay. (A new trade group, with a brand new CHQ and 2* post as HoB , to be introduced to regulate on-base parking).
Just contract out parking to NCP or APCOA.
On the subject of Sqn numbers, why not just logicify the whole thing and go for:
0x: fast 'n' pointy
1x: sneaky beaky
2x: fat 'n' heavy
3x: wokka
4x: training