[Referral Improvements]

I Believe The Time For Referrals should change to 30 days and give the person who puts in the referral a reward for playing as after 30 as long as they have reached the objectives they will get a big reward. 

Change Referral Time - Its Too Easy To Reach 500 Score In 60 Days As I've Played Before and know i have came back im on 988 score after 40 days so this would encourage payers to play if they risked not getting the reward

Reward For New Players Reaching Referral Requirement (Don't Think In Game) - New Players Should Get A Reward of $7,500,000 and 50 of each resource so they have something to wor=rk towards and carry on paying @Alex

[New Military Improvements]

Submarines 

Submarines Could Be Used In Naval Battles Or As an Alternative Way To Defeat Naval Ships 

Submarines Would Cost Steel To Build Similar To Naval Ships But Less

Helicopters

Helicopters Would Be Used In Air Battles To Defeat Planes In Air Battles or Bomb Cities

Helicopters Would Cost Aluminium To Build Similar To Aircraft But Less