That takes place between issue #80 of the marvel series and Generation 2 explaining what happened to ratchet,shockwave,the autobots still left aboard the ark,the megatron/ratchet link and how megatron fixed that,how grimlock got a new transformable body and what happened to the effects of nucleon on the other transformers,and the race of creatures that primus created before the transformers.
https://www.google.ie/url?sa=t&rct=...tAxMMG_hbxmbio-5g&sig2=h8s24n0Tvbitvea3zZuhNA Not set between G2, runs as an alternative universe to it.
Ratchet and Shockwave died when the Ark crashed, didn't they? I mean, death was a little hard to define in the Marvel comics and I suppose they could be repaired like Megatron and Starscream were but for all intents and purposes they were dead.