This is what I did... Colored base to match the sticker on the sleeve, then numbered the models base to match the sticker.
For example: my regular heavy storm trooper card has blue 1&2 stickers. Them models base rims are blue and one is numbered 1, and the other 2. Whenever one of the models receives damage I simply place the damage token next to the deployment card by the number of whichever model tool the damage.