It replaces the wrench now? Buuuuuuuuulllllllllllll stuff.Totally not worth is. Yeah, it's a freaking robot hand, but it pretty much downgrades engineers.What the forget, Valve.
No it doesn't.You can still build/upgrade normal buildings
If he had it replace the pistol, it would make the wrench no more useful than any other melee weapon.
it says "instead of" so it's likely that you can't make normal sentries at all
But you can't upgrade or even fix them.It's like trading upgrade and repairable buildings for a second sentry that does half damage.
But you can't upgrade or even fix them.
How long has the blog been tf2.com