Any ideas? Engineer is a rather strange class, I'm very interested in seeing what they do with him...
One thought I had was mines, it would be really really cool if engys could build mines. Like, they blow up if enemies get too close to them, they can be shot to death, spys disguised as your team can sapper them, or enemy engies can disarm them... It would be like another sticky grenade, but less spammable and automated...
Any ideas, yee clever beasts?