Generate battle environment : SEAD + CAS flight.

Added more factions.

gen/sam/aaa_flak36.py

@@ -0,0 +1,25 @@
+import random
+
+from dcs.vehicles import AirDefence
+
+from gen.sam.group_generator import AntiAirGroupGenerator
+
+
+class Flak36Generator(AntiAirGroupGenerator):
+    """
+    This generate a Bofors flak artillery group
+    """
+
+    def generate(self):
+        grid_x = random.randint(2, 4)
+        grid_y = random.randint(2, 4)
+
+        spacing = random.randint(10,40)
+
+        index = 0
+        for i in range(grid_x):
+            for j in range(grid_y):
+                index = index+1
+                self.add_unit(AirDefence.AAA_Flak_36, "AAA#" + str(index),
+                              self.position.x + spacing*i,
+                              self.position.y + spacing*j, self.heading)