It seems chasing the Allspark alone was hardly a plan right? And Megatron being Number 2 to the Fallen doesn't fit him right? Nobody commands the Decepticons but him right? Thing is Megatron had a Plan. But it all went to The Pit thanks to Luck or Fate. It all fits! Speculation with some spoilers. Spoiler For one thing Megatron knew where the Allspark is going to crash because Sentinel Prime told him as he defected. http://i26.photobucket.com/albums/c111/ReddyRedWolf/Transformers/SentinelPrimeArkBio.jpg The Ark with its sophisticated sensors knew where it was headed. Megatron went ahead to take it. Or Sentinel arranged its trajectory towards Earth. But wait what about the Fallen and Sentinel Prime? The Fallen wanted every bot named Prime dead. Here's the thing Megatron had Sentinel Prime's death faked! Megatron wanted to use Sentinel Prime to kill the Fallen. Consolidate his leadership on both factions by killing the Decepticon founder and having support of the Autobot founder. They were supposed to rendezvous on the moon but Megatron got iced. With the crew and Sentinel in stasis they never got a wake up call and eventually plowed on the moon.