Hybrid Warfare: New Strategy

This is the second time I try to bring this idea along, I'll try my best to convince you to love this new strategy and I will attempt to make it as balance and as interesting as possible.

What is Hybrid Warfare? or HW?

It's a military strategy that mixes various forms of warfare such as conventional and irregular warfare, which fits well with the current units that AW consists of. Hybrid Warfare (HW) also blends different types of warfare such as biological and cyber warfare but those wouldn't work well with what AW currently is. So lets just stick with a blend of conventional and irregular warfare tactics.

Hybrid Warfare originally became famous after the American Revolution, where it was used by generals like George Washington. Basically said, hybrid warfare was a combination of large armies of expendable and decently trained militias forming perimeters to fight various fronts, while having a stronger core of infantry units guarding the center where the general was. Thus, using tactics such as stealth and the use of conventional weapons.

The part that makes it hybrid, is the mix between conventional and irregular warfare. In AW terms, we would therefore compare these tactics with the units the game currently amounts of. For example, a bonus to infantry defense in cities would fit well with the HW principles. A boost to militia attack and range would be needed. And finally, having very cheap marine units with a slight boost to defense at the cost of a much lower attack would fit very well in Hybrid Warfare's "irregular" form of warfare.

Arbitrator's Suggestion (IMO better)

new unit stats (change only)
Land
Infantry 1 atk(-3) 7 def(+1) 85 cost (+15)
Tank 9 atk(+1) 1 def(-3) 130 cost(+10)
Marine 6 atk(-1) 2def(-1) 80 cost(-80) + loses defence in city bonus. (so overall -2 def)
Militia: 4 atk(+1) 3 range(+1) 30 cost
Subs 5 atk(-2) 3 def(-2) 3 cap (+1) 175 cost(-25) (delib made it so subs can't help take city)

major nerfs
bombers 4 atk(-2) 4 def(-2)
stealth 5 atk(-2) 4 def(-2)
transports 350cost(+100) 7 range(-2)
Air trans 750cost(+150) 11 range(-2)
Helicopters get no bonuses against militia/infantry
Anyways this is it. Please comment and discuss it. I believe it is pretty balanced, so there shouldn't be other boost/nerf suggestions, unless you think of something better. But I don't want people changing the point of this strategy. Modifying it is fine, but changing it is not.

Have fun!