no, the items were only available for pre-release of AC:R.
You can craft the items in game. Blueprints can be found on the tf2 wiki
One way to earn easy money in Assassin's Creed Revelations is by looting enemies and selling their items at a blacksmith. You can also complete side missions, courier missions, and assassinate targets for rewards. Additionally, investing in the city's economy by renovating shops and landmarks can generate a steady income over time.
You are able to purchase it once you meet with Leonardo. In a memory sequence, you speak with Leonardo and he tells you how to find him. After that, you are able to purchase 3 items from Leonardo.
As of 27/04/2012 there are 540 items in team Fortress 2.
The random items you find throughout the game are used for shop quests. The shop owners at the island where your base is have the option for it, you can then trade them items for the ability to buy weapons, armor, better poison, and other upgrade.
You don't. Items created in the Workshop for Team Fortress 2 are added as either random drops in-game or as purchasable items in the Mann Co. store.
Yes, as long as you are in-game, you are able to find items.
No, it's a pretty long game. There are about 6 to 10 missions in every level, and there are around 14 levels. You do the math. Also, there are many items to collect and you also get other missions such as assassination missions and courier missions that you have to accomplish.
Valve items are primarily only given to Valve Staff, although these items can be traded, it is very rare that they are.
About half way through the game you'll get a mission that reunites Ezio with Leonardo. From that point onward there are special benches that will allow the player to purchase new items, they can be found on the map at certain points in the game.
Sorry for such a short answer. No, you may not.
You have the same chance of getting a hat in any type of map on Team Fortress 2. It's not the map that gives you items, it's the drop system that gives you up to 12 items every week, as long as you play.
Playing the game, will give you drop items/weapons and achievement items/weapons. You can also craft, trade, or purchase items and weapons.