We Continue to Sneak through SPLINTER CELL: CONVICTION
Like Rainbow Six before it, Conviction uses the PEC progression system, which stretches across every mode of play. Whether players are working through the single-player campaign, the co-op mode, or any of the multiplayer modes, they'll earn points that can be used to purchase weapon attachments, unlock better armor, and upgrade gadgets.

Tom Clancy's Splinter Cell: Conviction Walkthrough Game Guide

You can grab enemies and use them as human shields, but it's hard to play the game super aggressive. Savvy players will want to hold to the shadows and utilize the game's mark and execute feature The goal of Conviction is to deliver a game in one single shot. You shouldn't see any loading screens while playing, and cutscenes help string together a seamless narrative. In co-op, you'll be able to lure guards into traps where your ally is waiting to strike and creative ways. After breaching one of the subway walls, we discover that Rebko is holed up in an old WWII bunker being guarded by a dozen armed men. We decide to divide and conquer.

Splinter Cell Conviction Walkthrough
After climbing a pipe and crawling through some of the building's ceiling tiles, we use a pair of sonic goggles that allow us to see through the complex's walls, Since Archer and Kestrel can share each other's mark and executes, we shout out enemy positions and mark targets while our partner weaves through the rooms below, executing targets at his discretion.