Splinter Cell: Conviction Last Stand Mode Hands-On - GameSpot

We face off against endless waves of terrorists and learn a thing or two about stealth in Conviction's new multiplayer mode.
Sam Fisher's work is never done, and this installment will find him engaged in daylight operations aimed at uncovering a mole and protecting those he cares about.

Mark and Execute, Splinter Cell Wiki

Splinter Cell: Conviction Last Stand - The Co-op Mode

Hitman: Absolution Review - GameSpot

Splinter Cell: Conviction Walkthrough - GameSpot

Splinter Cell: Conviction Last Stand - The Co-op Mode

Tom Clancy's Splinter Cell: Conviction, Splinter Cell Wiki

Last Stand Master achievement in Tom Clancy's Splinter Cell Conviction

Tom Clancy's Splinter Cell: Conviction - GameSpot

GAME REVIEW – Splinter Cell: Conviction (PC Version)