Tom Clancy's Splinter Cell Double Agent Cheats

Tom Clancy's Splinter Cell Double Agent Unlockable: Elite Mode
You must finish Solo Mode.

Tom Clancy's Splinter Cell Double Agent Unlockable: Spy (Second Skin)
You must make Recruit in the rankings.

Tom Clancy's Splinter Cell Double Agent Unlockable: Upsilon Forces
You must obtain Field Agent rank.