counterattack

if (e.Attacker != null && e.Damage > 0)
            {
                // Maybe this whole part should go somewhere else to avoid too much CounterAttack
                var allyUnits = world.FindUnitsInCircle(e.Attacker.CenterLocation, Game.CellSize * 6).Where(a => a.Owner == p && !a.HasTrait<Harvester>()).ToList();
                var enemyUnits = world.FindUnitsInCircle(e.Attacker.CenterLocation, Game.CellSize * 6).Where(a => a.Owner == e.Attacker.Owner).ToList();
                var allyUnitsAway = self.World.ActorsWithTrait<IMove>().Where(a => a.Actor.Owner == p && !a.Actor.HasTrait<BaseBuilding>()).Select(a => a.Actor).ToArray();
                BotDebug("Bot {2} noticed damage {0}, counter attack with {1} unit(s)", self, allyUnits.Count(), p.PlayerName);

                var assaultUnits = allyUnits;

                if (enemyUnits > allyUnits * 2) // TOTAL OVERRUN
                    assaultUnits = allyUnitsAway;

                foreach (var a in assaultUnits) // Fast Counter attack
                    if (a.GetCurrentActivity().GetType() != typeof(OpenRA.Mods.RA.Activities.Rearm))
                        if (a.HasTrait<Helicopter>() || a.HasTrait<Plane>() && a.TraitOrDefault<LimitedAmmo>().HasAmmo()) // Copters and planes should not take off without ammo
                            TryToMove(a, e.Attacker.CenterLocation.ToCPos(), false);
                        else
                            TryToMove(a, e.Attacker.CenterLocation.ToCPos(), true);
                aggro[e.Attacker.Owner].Aggro += e.Damage;
            }