I think in the original Army Men game, there wasn't such thing as a medic, you just could pick up med packs. In Army Men II and after, you could also run over an insta-pickup, one of which gave you health.
Gee, just thinking about those Army Men games bring back a lot of memories. Who doesn't love destroying buildings with a little plastic tank while you crush the other little plastic guys under you? Who doesn't love burning guys with a magnifying glass power up?