After beating a man unconscious, Dugan lifts another man over his head.

Dugan throws around and beats El Jaguar, who prior had been fighting Black Widow and Daredevil.

Holds a shrunken Godzilla back by the tail.

Punches a shrunken Godzilla in the face.

Get surprised shot by Baron Von Strucker, and continues talking. He really just seems to have had the wind knocked out of him.

His original Howling Commandos bio, he's described as 'powerful' and 'fearless'.

Dugan has an 'excellent service record'.

Is regarded as one of the first and best SHIELD agent.

Dugan has over five decades of experience.

Dugan is a Commanding Officer over S.H.I.E.L.D.

Dugan even commands over a Helicarrier.

Was specifically recruited for A.R.M.O.R.

Dugan later goes onto lead A.R.M.O.R.

Dugan is a master of conspiracies.

Has the balls to threaten Hercules.

Back in the early days of the Commandos, Fury, Dugan and the Commandos took on entire divisions of enemies, note that Dugan literally THROWS a man.

I think this is just a good thing to show, Dugan doesn't dodge bullets or anything like superheroes. He's a highly trained soldier, he takes covers and analyzes his environment and enemies to survive gunfights.

Dugan wrecks Howard the Duck in his sleep.

The Commandos take on an insane number of Japanese soldiers.

Dugan aided the Ducky Dozen in fighting a zombified Invaders.

Fights A.I.M soldiers with Nick Fury.

Dugan has fought Nazi zombies.

Jumps underneath an advanced tank to take cover.

Dugan blows up a plane while parachuting with a grenade.

While on a train, Dugan perfectly times tossing an explosive behind him on a passing train to blow up a cannon.