Has anyone found out the difference between troops at 1hp and troops at 2hp? How much less would you kill comparing the two? Would be awesome if anyone could shed some light

you would kill half as much troops at 2 hp than you would kill at 1 hp.

it's fairly simple maths, say you inflict 500 damage per round, then if the enemies troops are at 1 hp you kill (500/1) = 500 units

if they are at 2hp however you kill 500/2 = 250 units.