Brothers in Arms: Road to Hill 30
Every Level and Difficulty:
Heal Your Whole Squad:
Enter BAKERSDOZEN as a profile name.
Die twice and reload when you are prompted. Then you will be given the ability to heal everyone.
Unlock Everything Quickly:
Beat the game on Easy difficulty. Then choose and beat the last level on different difficulty level.
Thanks to Revolution readers silo, Monster_Zero, and richard!