ok ive been doing really well in grand theft auto chinatown wars and have good weapons but this one mision has got me really stuck. its when wade heston asks you to take out the scramblers and they stuff up your gps. I manage to destroy the first 2 but when the one of the scramblers starts moving i find it and they kill me with somekind of smg. this happens everytime i get to find it and run behind it a kaboom im dead. can anyone help me as i cant get past this and have been trying for ages. what do i do?