sooooooo what if... the cons where like.. space bugs, and the autobots where a collection of people unlucky enough to stumble across them by accident?
thats, basically what this is?
essentially, cybertron completely ran out of resources, forcing it's inhabitants to search for other planets capable of supporting life. they find earth, but because they lack the whole -turning into cars- thing, staying secret and safe is a lot harder.
soundwave and the cassettes get separated from the nemesis while scouting for food, and wind up running into blaster. who does his very best to help.
tarn is violently obsessed with Megatron, unfortunately that gets taken out on soundwave (since they're corjunxed here) , he essentially stalks them the entire time they're separated from the rest of the cons.
thankfully Megatron finds the group before things get too dire
poor blaster keeps hearing stories about soundwaves precious husband, but the very first time he sees Megatron is horrifyingly violent lol.
(the cassettes are very happy he's back :D)