Aldaris: Who is this human? Jim Raynor: The name's Raynor, pal. And I won't be talked down to by anyone. Not even a Protoss. Aldaris: Amusing. Tassadar, your taste in companions grows ever more ... inexplicable.
The Siege Tank driver starts humming Ride of the Valkyries. (Don't ask me why the Valkyrie doesn't.)
The Goliath's Stop Poking Me lines "USDA selected"note as in, the US Department of Agriculture and "FDIC approved"note as in, Federal Deposit Insurance Corporation.
Ever tried ordering Devourers to Attack-Move against Carrier interceptors? Cuz it's frickin' hilarious.
A little explanation for those who haven't tried it: Carriers launch tiny Interceptors to attack, with the consequence that a mass attack command generally targets the Interceptors first (because they're closer). Interceptors are the fastest units in the game; Devourer missiles are gigantic blobs of acid, and one of the slowest missiles in the game. They home.
Episode VI of the entire 1st game has an SCV asking Sarah Kerrigan as to get him out of there after the player character successfully got all of the brood to Kerrigan's side.
The fact that a bunch of Marines can shoot down a Battlecruiser. Battlecruiser are enormous warships, while Marines pack somewhat oversized but still fairly normal rifles. In a saner universe those rifles wouldn't be capable of denting the Battlecruiser's armour much less shooting it down.