Initial implementation of AEW&C missions.

Still a work in progress (the missions don't actually perform their task, just orbit). Currently:

* AEW&C aircraft can be bought.
* AEW&C missions can be planned at any control point and at front lines.
* AEW&C will return after 4H or Bingo.

game/db.py

@@ -1117,7 +1117,8 @@ COMMON_OVERRIDE = {
     GroundAttack: "STRIKE",
     Escort: "CAP",
     RunwayAttack: "RUNWAY_ATTACK",
-    FighterSweep: "CAP"
+    FighterSweep: "CAP",
+    AWACS: "AEW&C",
 }
 
 """
@@ -1328,6 +1329,7 @@ CARRIER_CAPABLE = [
     A_4E_C,
     Rafale_M,
     S_3B,
+    E_2C,
 
     UH_1H,
     Mi_8MT,

game/theater/base.py

@@ -4,7 +4,7 @@ import math
 import typing
 from typing import Dict, Type
 
-from dcs.task import CAP, CAS, Embarking, PinpointStrike, Task
+from dcs.task import AWACS, CAP, CAS, Embarking, PinpointStrike, Task
 from dcs.unittype import FlyingType, UnitType, VehicleType
 from dcs.vehicles import AirDefence, Armor
 
@@ -122,7 +122,7 @@ class Base:
             for_task = db.unit_task(unit_type)
 
             target_dict = None
-            if for_task == CAS or for_task == CAP or for_task == Embarking:
+            if for_task == AWACS or for_task == CAS or for_task == CAP or for_task == Embarking:
                 target_dict = self.aircraft
             elif for_task == PinpointStrike:
                 target_dict = self.armor

game/theater/conflicttheater.py

@@ -812,6 +812,7 @@ class FrontLine(MissionTarget):
     def mission_types(self, for_player: bool) -> Iterator[FlightType]:
         yield from [
             FlightType.CAS,
+            FlightType.AEWC,
             # TODO: FlightType.TROOP_TRANSPORT
             # TODO: FlightType.EVAC
         ]

game/theater/controlpoint.py

@@ -603,6 +603,14 @@ class ControlPoint(MissionTarget, ABC):
     def income_per_turn(self) -> int:
         return 0
 
+    def mission_types(self, for_player: bool) -> Iterator[FlightType]:
+        from gen.flights.flight import FlightType
+        if self.is_friendly(for_player):
+            yield from [
+                FlightType.AEWC,
+            ]
+        yield from super().mission_types(for_player)
+
 
 class Airfield(ControlPoint):