Back before v2 was released, an update came that alphabetized the cards in order in each category. While some cards SHOULD be alphabetized (buffed units are best that way and it's a foolproof way to always have units in the same order), this is just WEIRD for other cards (such as the heal cards).
So here, I will propose a new order for each category (as I work my way through them in my process of rewording them).

Please provide feedback! Do you like this way better? Worse? Have any comments or suggestions on how they should be organized?

Discount Units
Enlist AA / Enlist 2 AAs / Enlist Recon / Enlist 2 Recons / Enlist Heavy / Enlist 2 Heavies
Enlist Arty / Enlist 2 Arties / Enlist Heli / Enlist 2 Helis / Enlist Fighter / Enlist 2 Fighters
Enlist Light Tank / Enlist 2 Light Tanks / Enlist Infantry / Enlist 2 Infantry / Enlist 4 Infantry / Enlist 7 Infantry
Enlist Heli and AA / Enlist Fighter and Heli / Enlist Heavy and Light Tanks / Enlist Recon and Artillery / Enlist Inf and Recon
*this way the units are ordered like they are on the screen when you buy them in-game

Buffed Units
As-Is (armored -> lethal -> marksman -> tech) is perfectly fine, but change the unit order to:
AA -> Recon -> Heavy -> Arty -> Heli -> Fighter -> Light Tank -> Inf

Heal
Minor Overhaul / Minor Air Overhaul / Overhaul / Air Overhaul / Major Overhaul / Major Air Overhaul
Recuperate / Medic / Minor Repair / Repair / Major Repair / Full Repair
Tank Depot / Resupply the Troops / Construction Crew

Mercenaries
Merc AA / Merc Recon / Merc Heavy / Merc Arty / Merc Heli / Merc Fighter
Merc Light Tank / Merc Inf / Merc Special Forces

Heroes
AA Hero / Recon Hero / Heavy Hero / Arty Hero / Heli Hero / Fighter Hero
LT Hero / Inf Hero

Damage/Armor
Firepower / Firepower Boost / Air Power / Air Power Boost / High Caliber / High Caliber Boost
Armor Piercing / Reactive Armor / Volatile Reactive Armor / Titanium Armor / Stopgap Titanium Armor / Kevlar

Movement
Octane / High Octane / Aviation Octane / Aviation Octane Boost / Adrenaline / Adrenaline Shot
Rally the Troops / Death March / We Need Reinforcements / Troop Transport / Armored Troop Transport / Light Troop Transport
Airborne / Airborne 2 / Airborne Ranger / Infiltrate / Airlift / Airlift 2
Airlift 3 / Evac / Evac 2 / Evac 3 / Evac 4

Vision/Range
Camouflage / Binoculars / Tech Binoculars / Survey the Field / Radar Tech / Long Range
Ballistics / Ballistics Boost / Aviation Ballistics / Aviation Ballistics Boost / Sharpshooter / Sharpshooter Boost

Super Buffs
Training / Advanced Training / Officer Training / Combat Training / Infantry Training / Adv Inf Training
Boot Camp / Ground Tech / Air Tech / Infantry Tech / Tank Leader / Squadron Leader
Fortify / Infantry Tech / Special Forces / Guerilla Fighter / Delta Force / Sniper

Debuffs
Blind Ground / Blind Ground Temp / Blind Air / Blind Air Temp / Blind Any / Blind Any Temp
Immobilize Ground / No-Fly Zone / Immobilize Infantry / Immobilize Any / Backfire / Engine Trouble /
Sabotage / Insubordination / Pacify Ground / Pacify Air / Pacify Infantry

Special
Berserk / Berserk 2 / Kamikaze / Kamikaze 2 / Rage / Rage 2
Tank Factory / Airport / Minor Artillery / Major Artillery / Nuke / Grenade
Smoke / Smoke 2 / Land Mines / Last Line of Defense / Assassinate / Air Support
Abandon / Eject / Bribery / Gold Rush

I pretty much like this, but I will post a write-up on a few card order/card text related things when I have the time.

Thumbs up so far.