Red Armor (sometimes referred to as RA) is usually the highest grade of protection in some deathmatch style first person shooters. Red Armor gives the player the most amount of armor point and absorbs the highest percentage of damage when collected. As the player takes damage, armor point diminish.
In Quake 1, a freshly collected Red Armor absorbs roughly 4/5 of inflicted damage. You are awarded 200 armor points whenever the armor is collected. Quake 2 as well rewards the player with 200 armor points. The red armor points value was lowered to 100 in Quake 3, however players are able to collect up to 200 armor points in total. Quake 4's red armor is also worth 100 points. After the armor is collected, it takes 25 seconds before it respawns.