Apex Legends Hacks

It seems the one shot thing is happening to more people then just me now too.

I had full health and full purple armor with a blue helmet, someone I could not see killed me in one shot.

I did not think that was a thing in this game?

Maybe its a glitch with the purple armor??  Another poster had a very similar issue, wearing purple armor, but he also had a purple helmet and got one shot by the heavy hand gun, whats it called?

Please confirm if any guns can one shot through purple armor and blue helmet.