The V-1 would be a perfect use for gunner perk points. It would also be an incentive for players to fly the Tempest, 152 and 262. I think the perk point on them should be pretty low, especially if gunner perks were used. However, the reload time on them should be historically accurate. Didn't it take like 1/2 hour to get one ready to launch?
I would picture the clipboard targetting method, but less specific than the ships' gun targetting. Select the target (an airfield, a city, an HQ, a fuel dump, etc.) Once you select it, it should - if uninterrupted - fall in a random location within a certain radius of the center of the facility. A good radius would probably be the size of an HQ. That would make it virtually useless against a VH. The blast should be able to damage or destroy nearby structures though. It shouldn't need a direct hit to cause damage.
This would model the inaccuracy of the things. Although they were very inaccurate, the were accurate enough to hit the city they were aimed at, just not accurate enough to hit the exact location. Since cities in AH are not modelled to scale, allow them to hit the intended target, but not garauntee damage. For example, if an airfield were the selected target, the buzz bomb could fall between two hangars and only knock out the AA, or it could fall right next to a FH and knock it out.
The V-1 range could be set so the most forward of them could reach HQ. They could be set up in a line parallel to the starting country boundaries or the boundary coast. The terror would be the fear of losing your 'dar.
The long reload time would encourage players to launch one, switch to another V-1 base, launch another, etc. However, the long relaunch time would also make them prime targets for early attacks. For that reason, I think they should not be on the maps. This would encourage both sides to use recon to destroy them before they lose their radar.
I don't know why I like this idea so much. I do think it would be cool to see them streaking by with a bunch of Tempests trying to chase them down.