This is an interpretation of Iron Man's Mark 42 Armor look in ME2 using the Inferno Armor. It's not perfectly accurate but that's the beauty of it. I may, however, figure out a way to add the arc reactor and such when I get the chance. As of right now, there are two versions with very minor details that were edited. (This retexture works with both male and female Shepard)

To Install:

• Get Texmod
• To use in ME2, disable any overlays, such as Origin or Steam.
• Put Texmod in the Binaries Folder.
• Rename MassEffect2.exe to MassEffect2bak.exe (you could pretty much rename it whatever you want) and rename Texmod.exe to MassEffect2.exe
• Run Mass Effect 2 and Texmod should open.
• Then rename the applications back to their original names.
• Select MassEffect2.exe, load the mod, and click run.
  

For a more in-depth tutorial, you can check out this guide (even though it is for ME3, theoretically the steps are the same) 

Mods used in the screenshots:
ENB
ALOT