On Broken Hope, it's possible for a Scout chassis with dash to get on top of the Tram-way.

First, get on top of the 2nd story for the main courtyard, and make your way to where the bridge extends into the X12 Scrapmaker (Chain/Gatling gun) room and turn around so you can see the over shield room.

The jump from between the two robot statues is clear-able with a vehicle-to-robot dash-jump: throttle up, jump from the closest point (it's not an exact science, you don't need much skill to make this part, unless you're attempting it with a non-Scout chassis with dash), jump, transform preferably as you're still gaining altitude, and dash into the window.

After smacking against it, turn to your right, and sidle along the edge until you're as close as possible to the tram.

This is the tricky part: double-jump while headed to the right, and dash forward once you get at the correct position to make it into the nook between the destroyed section. If you've made it this far, you're golden.

Just transform to squeeze under the the rail-way, and there you go. As mentioned before, it should be possible to do it with any character capable of dashing, the first jump would be about timing, timing, timing: transform at the point where you can jump from between the two statues, and double-jump, to dash.

The second one seems to be perfectly within the Big Bot's jumping distance. This isn't particularly useful, but a trick that might help your friends, or keep you alive if you're the last one left. If you are the last one left, believe me, this is one those things you wanna be able to nail every time.