Well, I drew something else up to help exploit that new ravine dip going across shutter-side yard. If we're looking out for scouts, giving them new paths across second might be a nice addition instead of necessarily focusing on obstacles. By widening the cut through the spire, the path could accommodate two levels (to base-line spire floor or lower to the yard proper). It'd be a matter of deleting the chunk of walkway in front of the current entrance and replacing it with open space and bridging the new gap in the walkway with some logs laid flat and maybe given a little ramp in front of each start of the "log bridge" if the log diameters are too tall to simply walk over.
Picture: http://imgur.com/HOCfBzJ
A little crate could slip into the gravel pile that's holding up the two current logs on the bottom left of your screenshot as a means to help scouts jump up to base floor spire from yard without having to either walk normally from choke or go up the gravel ramp from the cutaway. Given that a lot of roamers currently like to roll-out on shutter-side second to mid with consecutive rocket jumps, adding more obstacles might get in the way of that. Then again, it might just come down to something to which the players would have to adjust. It's always your call, especially since I feel bad with how drastic my suggestions are becoming.
If you want to minimize the changes, then maybe just adding a crate where I drew one in the picture (it's that ugly yellow block thing) and then, yes, maybe adding a storage crate or something near the fence/rock wall and just letting roamers deal with it for their roll-outs.
Edit: It is just a shutter-side isometric view, so I'll do more views if you are interested.