trainer buildings granted 3 slots at r1

src/engine/objects/Blueprint.java

@@ -310,6 +310,10 @@ public class Blueprint {
 
         // Early exit for buildings with single or no slots
 
+        if(this.buildingGroup.isTrainerBuilding() && currentRank > 0){
+            return 3;
+        }
+
         if (this.maxSlots <= 1 && this.buildingGroup.equals(BuildingGroup.TOL) == false)
             return maxSlots;