add more difficulty to sh 3

hello.

i would like to know....

Do you think its possibl to allow convoy to have hedgehog soon at war, i mean at start of 1940 cause i never start a new campaign in 1939.. ^^

And also to have all sub in 1940, i am generally using the ixc cause i can have lot of torpedo and fuel...

Well what am asking here is not realistic but i already have all option ON about realism, i just want and would like to have some more difficulty in my sh 3..

i mean i would like dsetroyer to be a bit more pain in the ....

if you have other idea btw.. ^^

thank you.