I cant pass level four mission 4 (protect train), please help?

You have a powerful gunship like apache so you can play pillage and more custom missions to get gold and unlock a more powerful gunship to win more levels.

First,I recommend you to have at least a T3 gunship,otherwise this mission is pretty hard to pass.If you don't have,then you can play Custom Missions to earn some gold and purchase one.

While playing;

-Firstly,destroy all the ground units to secure the train.While doing this,you must dodge enemy Fighters' shots,otherwise they'll deal heavy damage and eventually kill you.

-Secondly,destroy the enemy Fighters.If you try to destroy them before destroying all ground units,ground units will damage your train while you're engaging Fighters.They may destroy the train because Fighters are hard to kill due to their speed and,the train is not so durable.

-Lastly,after destroying everything,wait for the train to move to the target.But beware because huge numbers of infantry will suddenly appear when the train is near the target and,can destroy the train in seconds.Kill them all before they do so,and then just wait.

Have apache with first four upgrades and just go ahead and destroy everything before the train gets there don't worry about fightets.

I have dragonship with added speed booster. So its so easy to clear that stage.

You can complete this mission with the help of osprey or using chinook which you'll get for free for ten time use only

Just play custom missions to buy the T4 plane called flying fortress it will finish this mission for you.

I'm only using sky shark to finish it its really hard but I did it!!! but you need osprey only to finish this mission.

Air Wolf and Chinook are very good choice.

Air Wolf has speed and missiles, good against fighters.

Chinook provides battle assistance with its auto cannon.

Good against infantry.

Choose accordingly

Behemoth M can accomplish the mission 4 ep4