I actually tried a few years back to do cards that had all the squad members on one card. It turned into too much information. In fact if you look at some of the vehicle and mounted unit cards, they start getting a bit busy themselves. Also there wasn't enough room to fit all the rules onto one card, I ended up with multiple cards or just an 8.5x11 sheet anyways. Furthermore, it got more complex when you have upgrade options for troops and other upgrade options for squad leaders and specialists. I tried this with Starship Troopers as well.
However, this format is the same as Rezolution, which none of my fellow gamers have had an issue with. They have seperate cards for squad leaders and specialists as well. It also makes it easier to generate all the different cards when you have only a few standard formats. After a while it becomes a matter of copying and pasting.
Also now with upgrades and spells, these become seperate cards which can be paperclipped onto the appropriate card to determine who has what upgrade.
Another advantage with the cards is that by putting them in a sleeve with the an opaque backside, they can be used for blind deployment, and later the cards can be tipped to determine who's been activated.
Anyways, I've found it to be a useful tool in playing many of the games we play as well as teaching the game to other people. With the way UWZ book is layed out, I'd think this would help more than any other game. Anyways, I've been hoping to share this with the other players. I'd have to thank Warzoned, for peaking my interest again with Warzone with his campaing rules (BTW, I still owe you my comments, sorry for the delay). That really got me started on working on these again.