Live Free, Die Hard Quest Guide
Live Free, Die Hard Tier 3 - To set an explosive on the garage you will need to go around to the back of the building and use the power circuit. This will turn off the cameras long enough to plant your bomb.
Live Free, Die Hard Tier 3 - "Set an explosive on the primary pipe" Use the tractor nearby to trigger the alarm. This will distract the guards long enough for you to set the explosive on the pipe.