The episode that comes to mind when talking ground combat is DS9's ...Nor the battle to the strong, where Jake Sisko encounters a wounded ground soldier, who mentions hoppers IIRC. Possibly also The siege of AR-558, for ideas on what ground combat could look like.
As for the question of knowing what is Star Trek, I think this one has been open since 40 years now and can still be debated for some time... 
I tend to agree with Tobian too that what's seen on the show doesn't have to be allowed in a game, or that it can be tweaked as the GM sees fit.
For instance, one could rule that the TR-116 can only work inside a closed interior (like a ship, a building, or a space station), rendering it useless in outdoor ground combat (and even hard to use for an assassination attempt, since the sniper would have to be in the same building as his target). Or just wipe it from one's game timeline (which I did, and warned my players about - I just can't begin to imagine what they would do just with its "see-through-walls" visor).
And, on the other hand, if you want your players to fight against tanks in a muddy valley with hand phasers and hoppers, then go on with it (anyway this can happen on remote worlds).
"The main difference between Trekkies and Manchester United fans is that Trekkies never trashed a train carriage. So why are the Trekkies the social outcasts?"
Terry Pratchett