Strategy Page has an article on the modified Avenger anti-aircraft Humvees mentioned previously on MO. In short:
In two days, the engineers removed the right missile pod, and moved the machine-gun up to where the pod was. Some changes were made in the fire control software. All this allowed the machine-gun to fire in any direction, at any elevation. The ammo capacity of the machine-gun was also increased from 250 rounds to 600 rounds. The missiles were removed from the other pod. The two man crew of the Avenger was now ready to use their FLIR and laser range finder to provide accurate long range .50 caliber machine-gun fire day or night. The Avengers were expected to be particularly useful at night. [emphasis mine]
Note that they removed the missiles from the other pod. I hadn’t seen that, and I don’t know why they had to. Maybe to remove a potentially explosive target?
Why, then, wasn’t a second machine gun mounted? Maybe to allow quick rearmament with anti-air missiles should the need arise? A commenter on my original post noted that the left pod couldn’t be modified or removed without major work, in part because the sighting gear is in there.
Something I mentioned was the possibility of replacing the four Stinger missiles in the pod with AT4-type missiles. The M136 AT4 is slight larger than a Stinger, so it might be a physical impossibility in any event. Another reader suggested a ground-launched version of the Hellfire, but that missile is even bigger. I was looking for a quick and easy modification that would give a little heavier punch to the Avenger in this role.
If it’s going to take factory modifications, we’re probably better off with something purpose-built. This Avenger modification is an example of in-the-field ingenuity, and I’ll be looking for news on its performance.