This mod gives you relay grenades similar to the ones used by the vanilla game. These grenades will spawn a squad member of your choosing who will follow you and fast travel with you anywhere. There is no limit of how many squad members you can spawn. They will all follow you. This is still in an alpha state, and the only way to give them commands or trade with them is by clicking on them and typing "setplayerteammate 1" until i figure out more stuff. 

Location: Sanctuary Hills Bunker

You will need the textures and meshes of these two great armor mods if you're planning on using the enclave relay grenades. 
Enclave X-02 Power Armor
http://www.nexusmods.com/fallout4/mods/11017/?
Enclave Officer 
http://www.nexusmods.com/fallout4/mods/11405/?

I will make a craftable version in the near future, and hopefully add the function to give them commands and drop from vertbirds.