That's a pretty good place to put a sentry with a machine gun (as long as you're okay with your Heroes getting their hands on a machine gun!).
This could be our first time seeing a Hero launch himself from a catapult before. I don't care how good his save vs. science is; I'm pretty sure he's going to take damage from this.
We get some details of a two-story ranch house with attic here. Note the spacious rooms and spartan furnishings. Better for making room for big combats.
Of course, play could begin right at panel 3, requiring Biff to make a skill check for a safe improvised landing.
Curiously, the secret canal was dug through Panama, west of the Panama Canal, where the country is thicker and there are no lakes to take shortcuts through. A cursory glance at a real map would suggest that east of the Panama Canal, short-cutting through Lake Bayano, would have been easier.
It interests me that the secret canal was dug "years ago." Often in these stories, Heroes stumble across something like this when they are new, or still being built, before they can affect history. It would be interesting to conjecture how a secret canal through Panama would have impacted world history.
I also have to say, I'm liking the distinctively cartoonish art on Biff Bannon.
(Scans courtesy of Comic Book Plus.)