+1, I really like these ideas, and have wished for much the same in the past. Having towed units, as well as an infantry squad as a single controllable unit, would IMO give the ground game a huge boost in fun and utility, as well as give the ground attack aircraft a lot more to do, especially in terms of CAS and interdiction type missions.
I also thing it'd give the MGs on tanks, APCs, and jeeps a lot more use, as now all they are really good for is the odd occaision when you need to shoot running troops near a base - however if there were small squads of infantry as well as towed units, you would have a lot more targets for the MGs on vehicles, as well as strafing from planes like the IL2s and such. Infantry units with a selection of loadout int he hangar screen, anti armor, MG crews, small arms/grenades - it'd be a blast, even just have them move/controlled like the GVs are now with wsad and such. So many options for towed units too, I really like the write up Skyguns, and agree with all of it.
Maybe some day once the new game is rolling HTC will look at stuff like this - heck, I think even have free to play players allowed in, but only let them have the jeep or these infantry units, would stimulate a lot of new accounts for the "full" game, plus give full sub players a lot more live player ground targets to kill - win win, so long as there was a limit to the # of FTP players let in, just let them fill out the max server number sort of thing, and then eject them when they die if it's full and sub players are trying to get in. Just ideas, but IMO they would work and getting new players interested, letting them see all the stuff they are missing out on without an account.