One Mech of a Ride (10)
Hijack your first Mech.
This will be your first achievement within the "Mech Land Assault" DLC & it is story related & cannot be missed.
About halfway through the first mission of this DLC, you'll encounter your 2nd Mech.
Unlike the first one where you had to destroy it to continue the mission, this one you can hijack.
Simply shoot it with the Power Core weapon you picked up a few moments earlier, reel in & hit "Y" to hijack it.
The game will also notify you and tell you what to do, in case you use a different controller layout.