Obtaining Merryweather Jeep in GTA 5 Online is pretty easy if you have a friend who is at least level 35. This Off Road vehicle represents lifted version of Canis Mesa Jeep.
In order to obtain it, call Merryweather, choose Call Mercenaries option which cost $7500. Select a friend to be attacked by Mercenary. Make sure your friend is in secluded location, so other players cannot steal your vehicle.
When Mercenaries arrive, your friend should kill them all before they exit the vehicle. As a result, you’ll get a massage that the mission was unsuccessful, money will be refund to your account, and you can take the vehicle. If you like, sell it to Los Santos Customs for $8500.