I believe the restrictions placed on (cheap) Turkish unit placement was not intended to curb the number of troops available, but, as you say, to reflect the nature of the Ottoman army. The Sultan's army (i.e. the main fighting force available to the Ottomans) indeed nearly always began its campaigns in the vicinity of Constantinople for purposes of recruitment and supply. The campaign season started usually at the beginning of May when there was enough hay available to feed the huge amount of horses (a major logistical problem for all contemporary armies). It lasted until November when the weather usually turned bad. This left six months for active campaigning and it took some four months to advance all the way to Vienna. This is probably the main reason why the Turks never took that citadel. If you look at a map of the Ottoman Empire at its largest you can see that it has something of a resemblance of a giant circle with Constantinople at its center. There is some bulging in the Levant and Africa as campaign season was here longer and armies could use naval support. Simple logistics usually go a lot farther to explain military success than bravery or skill.2. What is this Habsburg inheritance of Hungary?
Having said that, I do not think the game system quite manages to reflect Ottoman logistics, but I have no better solution myself due to the game system, which equates an entire campaign with a single move.
-opinion: Risto Marjomaa
The national dynasty of Hungary became extinct 1301 and after that Hungarian kings ruled also other countries (Bohemia, Naples...), so their interest to Hungarian matters were minimal at worst. To make matters worse, Hungarian nobility possessed very strong position and opposed any centralizing attempts from strong rulers. So, after last strong Hungarian king Matthias died 1490, nobility supported weak Vladislas II of Bohemia to his successor. Matthias has secured Hungary's southers border, but border defences were neglected under Vladislas rule, and the Ottoman incursions increased.3. Why there are exotic resources available in Ormuz province?
1505 Hungarian assembly of nobles, the Diet, passed a resolution never again to accept a foreign king. 1515 Vladislas married his son Louis to Maximillian of Habsburgs granddaughter Mary, while Louis's sister, Anne, married Maximillian's grandson Ferdinand, who was to succeed to Hungarian throne if Louis died without son or daughter. Vladislas died 1416, and 9 year old Louis II was proclaimed as a king.
1526 Turkish sultan attacked Hungary and almost eliminate Hungarian main army in Mohács and kills Louis there. Ferdinand of Habsburg and Diet's candidate Zápolya of Transylvania both claim Hungarian throne, which put Turkish sultan in a position to re-arrange Hungarian domain. Sultan confined Ferdinand's domain to the north-western part of Hungary, created semi-independent principality of Transylvania and incorporated southern parts of Hungary, including Buda, to his own dominions.
How this works in EU? The event 8:I 'Habsburg Inheritance of Hungary' represents the marriages of Vladislas' children, which historically happenend in turn 6. The game designer has made the assumption that Louis wouldn't have child of his own, and he will die at turn 10 (at the age of 28-33, whooah!).
Persia by itself doesn't produce spices, and it's manufactures were not peculiar enough to be branded as products of orient, so these resources reflect the flow of exotic resources through Persia.
Through Persia runs two main trade routes which connect Europe to China and India. Ancient silk road runs through the northern Persia, and almost as old coastal route, which was traveled traditionally by Arab sailors in their dau's, went from Mesopotamia, through the Persian Gulf and Arabian Sea, to the India, Malacca and Spice Islands. When Portuguese started to build their empire in India, it was only natural, that they tried to control this coastal trade. They used their normal procedure by building trading posts/fortresses in strategic locations, in this case in Straits of (H)Ormuz, to force Arab traders out from the Indian Ocean and open trade with Persia. These were Bandar Abbas (1507) and Ormuz (1515). Both were recaptured by Persia 1622.