"ExOps does a good job at briefing their operatives. I thought you said you didn't want to hear authorisation or approval?" - Major Steven Howard, Mercenaries: Playground of Destruction.
"Everyone wants a slice of the DPRK pie. Well, they just gotta wait in line." - Agent Mitchell Buford, Mercenaries: Playground of Destruction.
"It's time for the bat, to bear his fangs." - Motochika Chosokabe, Samurai Warriors 2: Xtreme Legends
"May I remind you, Admiral Constantine, that this alien 'scum', casually walked out of Governor Severus' prison fotress and absconded with a number of imperial prisoners. 'Scum'? They are too dangerous to be 'scum', Admiral." - Captain Ardius, Warhammer 40000: Fire Warrior.
"Cao Cao is but a pebble in the road to me. I shall crush him into the foundation of my dynasty!" - Yuan Shao, Dynasty Warriors 4.
"Have a drink, friend." - Shiv, Jak X.
Anything Cryptosporidium says in Destroy All Humans!1 and 2.
And for the most memorable quote ever...
"Is that who I think it is? It's Lu Bu. Lu Bu's come to destroy us! Aaarrgghhh!" - Random Coalition private, Dynasty Warriors 4.