What happened to the Insecticons?

The thought occured to me that the earth ones Airachnid had under her control were immature, and that she hatched them befure full develoment and full strength were achieved, in the hope that force of numbers would accomplish her vengeance.

The one Megatron fought could have been a parent.

You think that and I respect that totally. But I personally think they can.

That's actually a pretty good theory.

Arcee blasted one in Insect mode multiple times and it didn't even flinch.

Then again I don't know how Arcee's weapons compare to everyone else. Honestly it's probably just the writers cheating. No explanation, no theories, just the writers needed them to be weak, so they were.

They're as strong as the writing needs them to be

Arcee's guns do seem to be kind of weak, to deliver as much damage as the others do in a single-shot she has to fire like crazy. in One Shall Rise I recall that every time she got a drop on a Unicron anti-body she had to fire multiple times at it point-blank to kill it, while Bulkhead, Megatron and Optimus were picking them up with single shots.

True, but she also blew a giant hole in a Vehicon's head with one shot in the opening five parter. Her weapon strength is fairly inconsistent.

That Vehicon was made of toilet paper!

The Insecticon in last nights episode was doin pretty good. Almost makes my theory even more sound.

But in the end, he was killed by a rail road track.