What's the most impressive stock single launch mission you've ever seen accomplished in sandbox mode?

[jamgoth]

The most impressive I've ever seen is a fully reusable Single Stage to Everywhere grand tour. Yes, this includes Eve. I've done Eve return missions but I don't nearly have the skills to pull of something like that.

[AVaughan]

Stratzenblitz75 did a 3 kerbal, 3 parts mission to Gilly earlier this year, without the litho-staging or eva landing tactics Hazardish used.

 

Edited July 28, 2018 by AVaughan

[MR L A]

Hmm.. I don't really find launching utterly huge contraptions or 1000 part rockets impressive. At all. I was, however, hugely impressed by this cool design.

 

[purpleivan]

Probably the most impressive launch, or more accurately set of launches I've had was for the Mun Double challenge. This required a vehicle to fly from Kerbin to the Mun and back, then repeat that again. All from a single launch, with no refuelling or ISRU.

As an entry for this (I had a couple) I launched the Double Trouble, which at 222 tons (so 3 doubles so to speak) of expendable rocket, was fairly light for the task.

(Full Imgur album here)

[DoctorDavinci]

Well one of my favorite missions that I did was the Munar Dakar ... see spoiler for videos 

Spoiler