I've made youtube videos for each and every Hardware Crack laser puzzle you'll come across in the game.
You can also check my achievement guide & road map, which you can find here:
http://www.xbox360achievements.org/forum/showthread.php?t=26...There are several paths (routes) you can take. Here's an overview:
Route A: Act 1 (Start) -> Act 2A (Lighting Failure) -> Act 3A (Direct Route) -> Act 4
Route B: Act 1 (Start) -> Act 2A (Lighting Failure) -> Act 3B (Cross the Rim) -> Act 4
Route C: Act 1 (Start) -> Act 2B (Hostage Situation) -> Act 3C (Spacewalk) -> Act 4
Route D: Act 1 (Start) -> Act 2B (Hostage Situation) -> Act 3D (Interior Route) -> Act 4
Different routes will result in different puzzles. Depending on the route you'll take, pick the according videos:
- Route A: Act 1.1 / Act 1.2 -> Act 2A.1 / Act 2A.2 -> Act 3A.1 / Act 3A.2 -> Act 4
- Route B: Act 1.1 / Act 1.2 -> Act 2A.1 / Act 2A.2 -> Act 3B -> Act 4
- Route C: Act 1.1 / Act 1.2 -> Act 2B -> Act 3C -> Act 4
- Route D: Act 1.1 / Act 1.2 -> Act 2B -> Act 3D -> Act 4