It is hard to say but in my opinion they at points did like payload and the characters like like sniper and widowmaker but this is my opinion.
Yes. TF2 is a GREAT game, and I recommend you "buy" it. TF2 is now free to Play.
TF2 is free-to-play
No, TF2 is not playable on a phone
No you cannot trade weapons for beta tf2 to normal tf2. Beta Tf2 is considered to be a completely different game by steam. Therefore the two game's inventories are not compatible.
The heavy's name in TF2 is Dimitri Stanlevkov.
Try lowering your graphics settings.
mw3 is awesome very awesome for awesome people and this stupid tf2, the gun suck, everything in tf2 is suckish. play mw3, mw3 is the best and tf2 are for noobs and losers
Weapons cannot be "leveled up" in TF2
Yes, but note that both methods will yield the same results. In other words, there's no difference between a disc copy, and a steam copy. This is because steam started using full game downloads shortly after TF2 was released, so the boxed copies ended production. Note: The boxed copies are rarer than steam copies.
You could copy the Programfiles file. But it wouldn't the smartest thing because your account and his account would probably bug.
Download it from one the many places on the internet; Place the map inside: C:\Programfiles\Steam\Steamapps\YourName\TF2\TF2\Maps
you can find the transcripts from the "Meet The..." series on the tf2 wiki.