It works fine for me. There should be another option(s) next to the one you originally bought, and you buy that to upgrade. Is there not one for you guys?
BTW Well done cwilson244 for completing tha game with level 1 pursuit tech!
The only thing I get from tier to tier is more ammo. no upgrading on tech. no helicopter or road blocks except on tier 4 cops, and racers only have stun mine, shock wave, and ES field. Only have EMP on tier 4 racers ant tier 3 & 4 cops. That is all I have, no upgrading on any of it, just more ammo on the higher tiers!
I have seen spike strips from other player cops in tier 4 cars that cover the road from one end to the other, but mine do not. the ESfield definately gets stronger as does the shock wave. havent noticed a difference with shock ram on cops. Helicopter and road blocks are worthless/sloppy and easy to avoid. So yes, with more ammo there is an increase in the strength of the tech. You just cant upgrade lower tier cars with the stronger tech.
