Unrestricted submarine warfare = noob trap?

[Zaagan]

Hey there
i'm a fairly new player for strategic Command WW1. I play a 1914 scenariofrom the CP side. All seems to go well, and the fall of France seems in reach in the end of 1915.
However there is one thing. Last 1915 run, USA are mobilizing for war. The unrestricted submarine warfare I unacted in 1914 and whoch seemd to work well (trade lines to the UK becoming white, whoch means they are under stress, I suppose),seems also to swung them heavily to the Entente side way more quickly than what I excpected (I mean, Lusitania has not even been sunked).

That or the Entente investied heavily in diplo chits but never had any "USA swings to the Entente" message, whoch I suppose indicate a successful swing via diplo chit.

So, my suestion is, is the unrestricted warfare a noob trap, or at least it means that you can't do anything with your subs prior 1916?

[OldCrowBalthazor]

As a CP player it means you're doing well, especially if they are focused on bringing down the western Entente (UK and France).
The Americans maybe are going to enter the war earlier than the CP wants, but they got to be transported across the Atlantic. The USA also takes a long time to ramp up once they are in.

Crossing U-boat invested seas also is something the that could be perilous for the Americans.
Don't see a noob trap here unless the unrestricted submarine warfare mechanics are not understood well by one of the players, if it's a MP match anyways...