Sorry for the delay!
In this scenario, I had Gauntlet 11 and Gauntlet 12 (both units in the same group Gauntlet 1) added to the list of jammer units. Spawned in 11, menu worked as normal. When I left 11 and joined in 12, I got the menu, but it was duplicated.
I'm sure I messed soemthing up- possibly with the unit naming convention. Did not try two seperate groups. I'm still a novice at LUA... Either way, awesome stuff, has really enhanced our missions!