Touchdown!

Touchdown! is a Fallout 4 trophy and Steam [Achievement]

Requirements
Get a Touchdown. As of Nov. 2015, this seems to mean pointing the view downward and crouching in some way while triggering a lethal explosion. Observed ways to get the achievement on PC include long drops wearing Power Armor onto dead Suicider mutants, firing a Fat Man into the ground beneath you while crouching, and "spiking" a grenade while facing downward.