Well, since the last encounter with the enemy troops your shields and health sensors read critical. Most of us have been at that stage, and want a health pack before we need to restart at a past checkpoint. Well, in various games you can find a health dispenser to help you on your next leg of your journey. However, it is really hard in points such as Ravenholm (half-life 2) in which you can find a health dispenser. The value of health packs and healers are very big in hard MMO and FPS games. Heres a tip for these games: always hold found heath packs in your inventory.
The Value of Heath Packs in Games