I'm new here, so I dunno if it ok to post this but here goes.
Well like the makers said this game would be easy mod.
Two quick changes I've done.
Helo speed change 300kph to 1550 and 3 stingray torpedo to 5, did this in about 30 seconds.
Here is how.
C:Program Files\Steam\steamapps\common\naval war arctic circle\BattleSets\NWAC\
Open Helicopter.nwunits with notepad.
Look for nh90.
Look for MaxSpeedKph 300 change to whatever.
Look for stingraytorpedo.
Look for MaxAmmunition 3 change to whatever, and save the file load the first tutorials.
To mod the ships open this file SurfaceShip.nwunits.
To mod the subs open this file Submarine.nwunits.
To mod the airplanes open this file FixedwingAircraft.nwunits, and so on I'm not going to point out them all because there's no point, just oepn each file once at a time look and change save test simple.
It look like the mission could be modded in the same way too.
All most forgot the game seem quite good too, if the makers add a mission editor that would make the game super-cool.