Chapter 13 - A Marksman At His Best | Intel Data Sniper Guide

You'll obtain the first laptop (1) right in the beginning of a gameplay - it is located under the ladders, which you use to climb to the roof of the building.

The 2nd laptop (2) lies on the bonnet of the UAZ parked near the wooden watch tower on the checkpoint behind the bridge, which is located behind the river. You have to cross this river, in order to get to the tunnel, which you have to blow up with two satchel charges. Go crouch and sneak to this vehicle and the guards shouldn't see you.