I dunno, dude, really looks like you're complaining here.
And I'm all for calling out hypocrisy - you're the dude who went on AS servers (and got that "bullshit ping advantage") and said everyone there "sucks anal dicks". Not to mention you were most likely playing with people who literally picked up the game. (Unless you never actually played there and wanted to shit on them for no reason)
And I'm not wrong, unless you'd like to show me proof that you got headshotted by a Kar with 100 health and a level 3 helmet. A clip would do.
Here are my receipts. Data was mined around June 7th, and there have been no changes to the Kar98 since then (I think the website gets updated anyways).
The Kar98 does 72 damage. Headshot multiplier is 2.5x, so it deals 180 damage on a headshot.
The level 3 helmet blocks 55% of headshot damage, so headshotting someone with a Kar98 does 72 * 2.5 * 0.45 damage, which turns out to 81. Enough to kill a medkitted person, but not if they have a few boosts.