I disagree with previous post, commander needs all the new assets as you can possibly think of. However coming up with a reasonable asset that can be implemented is not that easy.
In my opinion giving the commander the ability to provide the team with the pickup kits in some form is a brilliant idea. The kits I have in mind are the tripod mounted MG's, sniper rifles and flamethrowers for example. They should be limited in numbers of course. This way these special kits can "move up" together with the team without becoming too numerous, which could happen when they spawn at every flag. At the same time they won't become too rare, which can happen when people don't bother to go pick them up at a back flag. The latter is often the case now.
Perhaps the easiest way would be to make them requestable at the supply box, PR style? (You request it near the box using the "T" menu and it spawns under your feet.) Then of course there is the question if this can be implemented to be map specific, so on different maps different kits can be available.