From "Beast Wars: Transformers: Beast Wars: Part 1 (#1.1)"
Maannn... All this for a golden disk...
It was Cybertron's carefully-guarded relic, Rattrap. It gave the location of a major Energon source. That's why Megatron stole it!
Yeah, like I care... You know, we was supposed to be doing deep space exploration - flying galactic patrol was nowhere in my job description, you know what I'm saying? You sure you're cut out for this commander gig?
Remember the Great War, Rattrap? If the Predacons get enough Energon they'll start it again. We can't let that happen. Besides, you wanted exploration, and here we are on an unknown planet - what more do you want?