[ummja]

I know Sidewinder exists but I've been unable to get that to work.

If someone can help me get that to work I would be eternally grateful...

However, I'm going to run on the assumption that it is broken and humbly request a plugin that give a CVAR to adjust the speed of sentry rockets.

[friagram]

you could always use onentitycreated and find tf_projectile_sentryrocket (or whatever it's called) and edit it's velocity down to your desired amount
I was going to do this at one point...
Like -> if engineer has wrangler -> and engineer fires rocket -> and engineer is aiming at bad guy -> make rockets homing + critical on said enemy.
Would be lolz.
Same concept, different application.