You can use this modpack in your let's plays as long as you put the technic launcher link (this one) in the description of the video,or you name it in your stream.
Installing a modpack using the Technic Launcher is easy. If you don't already have the launcher downloaded, visit our download page to get the latest version.
Type in the modpack name (SUPER HEROES super mega PACK) or paste the following url into the search box.
Finally, click Install at the bottom right of the launcher after you select SUPER HEROES super mega PACK from the list on the left. The launcher will handle everything else!