Weapons cannot be "leveled up" in TF2
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.
download them from garrysmod.org
You can either play a lot and hope you get lucky. Or you can craft extra dropped weapons into hats.
Assuming this is TF2, you get it like any other weapon. Random drops on servers. It can also be found as a strange in the #30 crate.
No, because robots are AI and strange weapons only track player kills.
Weapons cannot be "leveled up" in TF2
if you want to get the scout weapons eg. do achevments
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.
Nope, everything on your profile for TF2 (backpack/controls etc...) is kept online.
no
download them from garrysmod.org
You can acquire more metal in Team Fortress 2 by collecting metal items during matches (ammo boxes, weapons, etc.), crafting unwanted items into metal in your backpack, or trading with other players for metal.
You can't pick up weapons. The weapon you wish to use must be in your inventory and then you can equip it.
Nope, sorry.
you can find the transcripts from the "Meet The..." series on the tf2 wiki.
Just playing the game then trading those weapons for the weapons you want. That won't work because what if you were free to play so this may take a long time but you randomly get weapons when you play :]