ORIGINAL: Harquebus
I think a great deal of the HL owners are waiting with great anticipation for the forthcoming Tamiya compatible battle systems to become available. And with that you'll begin to see them on the 'battlefields'. Such as those types seen [link=http://www.fragarmor.org/Battlefield%202005%20(2).htm]here[/link].
Otherwise I think the great majority of 1/16 tank owners, regardless of brand, operate them as much as they modify them. I try to drive mine outside almost exclusively, preferably on packed to semi-packed soil, in a somewhat scale-like environment. I rather enjoy getting it dirty/dusty as it indicates what realistic weathering should look like. I don't try to drive it like a monster truck or participate in 'rock crawling'.
I also fire the 6mm gun in anger as much as humanly possible...

Might just have to invest in a small onboard 'spy camera' and laser pointer in order to be able to inflict hits on other enemy HL tanks.
-Harq
But rock climbings fu n harq.LOL