there is no way possible getting the kills needed for the assault shield was faster or easier than getting only 100 headshots.
and the kills needed for the knife were more than you need for headshots and osk for shotguns IIRC.
so either you're lying or very bad at bragging
He isn't, they are pretty easy, or at least fun to get gold working on shield myself now, teammates are getting in the way :/ others are easy, when I unloch the B-knife it will be an easy gold too, then I have diamond
with the assault shield and this engine headshots are infinitely easier than getting shield bashes.
I had diamonds for months and got them TWICE after resetting. and the second time was after I maimed the crossbow only during my 2prestige. headshots can be done at any range and come naturally while the non 'knife' specials are a pain to get because they require you getting the jump on slow to react or unaware enemies.
in this game half of the guns can kill you in the time it takes for the bknife to kill mid range due to travel time. and the because of the aggressor benefiting engine the shield is a liability to anyone who moves to the side. so you probably face half brained dead people if you think that was easy, btw I'm not trying to insult you.
tbh getting diamond specials is probably only easy to people who don't care about kd and go negative while doing so. but you don't necessarily have to change playstyles at all to get diamond ars