[Image: http://www.teamfortress.com/images/posts/mvm_fightthemetalmenace.jpg]
Have you seen the movie Alien? Remember how tough that alien was? Well, imagine if there was a version of Alien but with like hundreds of aliens. One: That would be a great movie that we now own the idea for. Two: The impossible odds of that situation pretty accurately describe the trouble you’re in for when that carrier opens on Wednesday and Gray Mann’s robot army pours out. Luckily, we solved the enormous plot hole that would have plagued our currently-in-production Alien sequel by offering MvM’s plucky heroes a whole mess of deadly upgrades for their weapons, items and abilities, which you can read about here.
We’re also unveiling a new museum-themed map called Coal Town. It features many informative placards about the fascinating details of life in a turn-of-the-century mining community, which you can read when you’re lying on the ground holding your own guts in while a robot stomps on your neck.
Source: http://www.teamfortress.com/post.php?id=8642
Robots drop money upon being destroyed, which can be spent on upgrades in between waves.
[Image: http://media.steampowered.com/apps/tf2/tobor/upgrade_ui.jpg]
You can also buy canteens, which are temporary bonuses. They range from 5 sec invincibility uber, 5 sec crits, ammo refill, etc.
Finally, every class gets their own specific advantages and unique upgrades, such as upgraded Mad Milk/Jarate slowing down targets, Sentries having 3x firing rate if the Engineer drinks a crit canteen, Scouts having instant respawns, upgraded Miniguns can pierce targets, etc.