TF2: What do you want in the Engineer update?

[Triforceformer]

I read on another forum an idea that was a new melee weapon that was a guitar that, when played, would give a certain effect to his machines. Like a stronger sentry, faster dispenser, or anti-spy song. And the Engineer would be perfectly still and vulnerable while he plays.

 

[TheRundownRabbit]

Uh, an awesome new hat.

 

[CrazyMedic]

I was thinking giving the engie like a sentry robot arm like it autofires but is weaker and you have to aim it, and it takes up the sentry spot so engies can be frontlines powerhouses so they can set up flanking bases.