"Cliches, you can't live with 'em..."

[Mirajj]

...I've often wondered about this one...

"Silly Squall, bringing a sword to a gunfight..."
No matter what timeframe the game is set in -- past, present, or future -- the main hero and his antagonist will both use a sword for a weapon. (Therefore, you can identify your antagonist pretty easily right from the start of the game just by looking for the other guy who uses a sword.) These swords will be far more powerful than any gun and often capable of distance attacks.