Alright sorry this took forever but I'm writing it all by hand. :X
An example of actual gameplay with the map ctf_2fort, the goal? either killing everyone and protecting base or going on offense or steal there intel briefcase 3 times and help your team or you yourself capture it 3 times for the win.
http://www.youtube.com/watch?v=V9raBxhYPgI
http://www.youtube.com/watch?v=2d3ZjrbRFAs
http://www.youtube.com/watch?v=y4GLf4cUcLk
Information about each character -
spy - invisiblity for a short time, backstab with knife=instant kill, disguise as other characters
scout - fastest character in 2fort, weapons= scattergun for multiple bullets, bats, handgun
engineer - handgun, wrench, sentry(killing machine), build teleporter, despencer(refill health/ammo)
demoman - bottle(bar fight bottle?), stickybombs(detonate placed gernades), regular gernades
heavy - slowest character but deadly with medic combo, machinegun, shotgun, fists
pyro - flamethrower, ax, shotgun.. with flamethrower you can blast/push enemies backwords using air blast?
medic - needles, a healing weapon that can make you and another person insisible for 10 or 20 seconds?.. called uber, saw
sniper - sniper gun to zoom in and give instant death head shots, automatic gun, machete
soldier - rocket launcher, shovel, shotgun
Weapon upgrades? Yeah there are but only for 3 characters at the moment(you have to earn them)..
medic - ubersaw(hit enemies to gain uber), kritzkrieg(no uber but you can give teamate 100% critical hits against enemy), blutzsauger(each hit on enemy with it gives you +3 health)
pyro - backburner(100% critical hits from behind), flaregun, axtinguisher(100% critical hit against burning enemies/-50% damage vs. not burning enemies/no critical hits against not burning enemies)
heavy - matascha(100% chance to slow enemy on hit/-25% damage done), sandvich(unlimited supply/takes 4 seconds to eat?/gives heavy 120+? health when done eating), killing gloves of boxing(on kill gives 5 seconds of 100% critical chance with weapons/20% slower firing speed)
Meet the character videos?(professionally done)
sniper -
http://www.youtube.com/watch?v=Y9lVvRa9aWc
engineer -
http://www.youtube.com/watch?v=i68cEsALWt0
heavy -
http://www.youtube.com/watch?v=MxUG0ApbDtQ
spy -
http://www.youtube.com/watch?v=ObKulsaHnj8
soldier -
http://www.youtube.com/watch?v=tktv1K6r3rg
scout -
http://www.youtube.com/watch?v=VfXcCkxVgyM
not sure about the other 3..???
is this game dead almost or something? why are they giving away this stuff.. -
actually it has 2000+ servers and the game is ranked 92 metascore out of a possible 100 i think by steam (means very popular)
that map you showed me looks stupid, what other stuff is there? -
even though ive played a few months i like to stick with something forever but i know there are others like instead of capturing intel you can capture control points and you can actually get them back to i think if there stolen but not sure??.. so you have to capture all 3 :0, there is a goldrush map where people push around a cart to a certain place but its hard when it moves slow and whole enemy team is trying to stop you

there are a lot of other maps.. you pick <3