Here is a few easy steps, these are simplified for those who find it hard to install the mod.

Steps:

Step 1 - Go to steam Libary.

Step 2 - Double click ArmA 3.

Step 3 - A box should pop up saying Play ArmA 3, Play ArmA 3 windowed, Open Launcher. Click Open Launcher!!!

Step 4 - Go back to the ArmA 3 workshop and find this mod, click subscribe. It should be downloading now.

Step 5 - Go to the launcher that should still be open and wait for the download to finish.

Step 6 - Make sure the download is enabled under the addon section!!!

Step 7 - Launch ArmA 3 through the already opened launcher.

Step 8 - Once in game open Configure then go to expansions. If you see Chinook Pack then it is enabled and will be in your game.

Step 9 - Go to editor

Step 10 - Press F1 and double click anywhere on the map that you picked.

Step 11 - A box should come up, where it says Class - Men select it until a drop down box appears.

Step 12 - Select Chinook Pack

Step 13 - Take your pick on what chinook you want to fly.

This is all the help I will be giving, stop asking for help do a google search!!!!!!

If all else fails then use the ARMAHOLIC DOWNLOAD!!![www.armaholic.com]