UICTE...
U is the 21st letter in the alphabet, and I is the ninth! if you put together 21 and 9, you get 30!
C, T and E combine to make an anagram for TEC- as in, TEC-9, a pistol that comes in ammo capacities of 10, 20, 32 and 50 rounds!
what's 30 divided by 10? 3!
left 4 dead 3 confirmed y'all beers are on me