Not only is it a science pun, but it shows the full force of the HECU and lets you dismantle it piece by piece.
Grunts? No problem.
Snipers? Their "use wounded guards as bait" just make them higher priority targets.
IFV Bradley? Wiped off the map.
M1 Abrams tank? Nah.
Friggin' Apache Attack Helicopters plural? Killed dead.
It is the action setpiece of the game and it even manages to keep a decent pacing so you don't get combat fatigue.