Level 1
+2 experience rank(s) for infantry recruits
+1 authority
Level 2
+3 experience rank(s) for infantry recruits
+6% melee attack skill for all infantry units
+3% missile attack range for all infantry units
+2 authority
Level 3
+4 experience rank(s) for infantry recruits
+12% melee attack skill for all infantry units
+6% missile attack range for all infantry units
+3 authority