How do i recharge my helalth in the game Socom ii us navy seals

In Fireteam Bravo 2, you must hold the left directional button and then select an item called, "Medkit". Then, your character will automatically heal. For Fireteam Bravo 3, you must take some cover and wait for your Health to recharge by itself. I don't know for Fireteam Bravo 1. For Tactical Strike, you must point to a teammate and then press square to use the medkit on him. But if you want to heal the character you're using, you must switch to a different team member and use that team member and point to the teammate that you want to use the medkit on.