The Secretary of Defense is depicted in game as being an army general, when in real life the holder of the office is mandated by law to be a civilian.
A suitcase nuke does not have enough yield to destroy the entirety of L.A. as depicted in game; at most it would destroy several blocks around its detonation's epicenter.
Hostages Irving MetCalf and Herman Moyer have the exact same face.
The Russians are referred to as "Soviets" in a loading screen.
When you get awarded the Police Star, the voiceover will say that you received it posthumously even when you're still alive.
An officer's biography says he joined the Marines in 1985 and served in Grenada. This would not be possible as the Grenada operation took place in 1983.
In a mission briefing, the Russians are referred to as Soviets.
In a mission briefing, the Russians are referred to as Soviets in the caption but the speaker refers to them as Russians.
A poster advertising travel to San Francisco shows the New York City skyline.
In the Tigris mission briefing, it is stated that there is an embassy in Los Angeles. Embassies are in Washington, D.C. due to it being the national capital; Los Angeles would have consulate-general offices.