No,Fasties should stand-still,like in HL2 and the default ZS,know why? because it's supposed to be made for roofcampersr,but when you run and a group of 5 fasties chase you,consider yourself dead,because if you're not a high level zerk,or you're alone,you're gonna die,no matter how much upgrades or how much your lvl is or the weps you have,even if they don't kill you,they leave you from 100 hp to 15 hp,so i do see making them stand-still as the best option,instead of reducing the damage or the attack rate.