Yet again, faust vs greyhound is broken, with a 0.5 damage modifier, meaning it only deals 50-62.5 damage.
2 fausts means 100-125 damage, which is 2/3rds HP left for the greyhound... You litelarly need 6 fausts to be sure you'll one shot a greyhound
. You need, on average, 5-6 to kill a sherman. It's just bugged, which will be fixed eventually, I hope.