operation monsoon says it has new u-boats like the iid. can you tell me anything about them? eg the insides, realism etc

iid has always been one of my favorite uboats, so i hope that its good in sh4

The Type II is in OM. I run a IIb all the time. Haven't played a IId, but I'm certain it's there.

is there more u-boats in sh4 then 3?

Same boats, as the SH4 ones are taken from SH3.

but there is no playable iib boat in sh3....

what about the ships? are there many of them?

Yes, loads of 'em.
A lot of them are conversions of IABL's Merchant Fleet Mod.
They look real pretty.

and the ships in gwx? are they in there? or is it a breach of copyright or something.gwx has about 200 ships dosent it? what about enemy submarines and aircraft? (well there would be more enemy subs then sh3 i would guess because of sh4...)

can you describe the types of missions? because i heard that sh4 has missions other then go to square XX and wait there 24 hours

No

From what I've heard, there are plenty of aircraft. Dunno about the enemy subs though. Probably.

After you have patroled your AO for the required amount of time (I can't remember, 4 or 5 days I think), you can radio BDU and they give you a new AO.

would it be hard to convert ships from gwx into sh4?

Further to previous answers, I started a similar thread a few weeks ago - you may want to take a peek.:D
http://www.subsim.com/radioroom/showthread.php?t=171797


I think the upshot is to try both (with GWX and OM), if you like both then all well and good, if you don't then the worst is you're a couple of [insert your currency here] down - flog it onwards, no loss!

You can read all the forum in the world on the two games but only you can decide if you like it.