Just read ANY TF comic written by James Roberts...well not really, here's the suggested reading order.
Only thing you need to know before reading Wreckers is that the Autbots and Decepticons fought on Earth, Autobots made a few human friends, one of them hitch hikes on Magnus' ship and has been with him for a few years/months. Finally the main events of the book take place after Megatron is presumed KIA.
Also, Cyclonus in this series isn't a Decepticon; he's an ancient Cybertronian warrior who left Cybertron eons ago, but his crew became corrupted and evil. He eventually helps the Autbots defeat them and has been on Cybertron by MTMTE.
1- Last Stand of the Wreckers
1b- OPTIONAL: TF: Chaos Theory this contains 2 issues that James wrote which are fantastic and show that Optimus Prime was a badass even before he became a Prime, don't worry about the Rodimus story too much
2- More than Meets the eye Vol. 1-4
3- Transformers Dark Prelude (contains stories that take place during Vol. 1-4)
4- More than meets the eyes Vol. 5-6
5- Dark Cybertron
6- The rest of MTMTE