I've been working fulltime on the game all the way up to release to try and bring new features and content to the game, here are some highlights of content you didn't see in the trailer.
Brand New Maps

Moon Base 18
Named after the Apollo 18 mission which established the first outpost on the moon. Troublesome civilians who want to see them moon rocks need to be terminated at all costs! Play as the United States government defending this vital intelligence center, or as civilians whose quest for knowledge is unquenched by the bounds of our atmosphere!

Tunnels
The raid enters stage 2! After storming the gate the United States military now flees into the underground tunnels of a key drone facility in charge of defending Area 51. Civilians now rush to destroy their air superiority by any means necessary! Hold your ground and keep those drones in the sky, or be part of the swarm to take them down.
New Classes
Heavy Gunner
Firepower. We're talking about a fully-loaded M249 machinegun with a 200 round 5.56 belt. It makes you feel powerful, like a proper member of the U.S military.
Sniper
The sniper doesn't fire often, but they do, it kills. Play as a slow but deadly shooter... and hey, are you wearing a grass ghillie suit in the desert?
Rifleman
An early version was shown in the trailer, but the rifleman now sports an XM8 fully automatic rifle perfect for concentrated fire!
Support
Who needs a big gun when your bullets are firing faster than they can move? Equipped with a rapidly firing SMG, having a compact weapon lets you fire fast and reload faster!
A Shiny New UI
Clean Defender UI Update

Players are now sporting more useful information to help them defend the base core! With a new reload & cooldown bar, you're better able to keep track of your firing and adjust strategies on the fly!
Smooth Attacker UI Info

Knowing what's going on is hard when you've got so many things to keep track of! But the new attacker UI makes this easy with a unit info display box whenever you hover over a spawnable unit. Now you can easily make the decisions necessary to overpower your enemies!
Changes to the rules
Defender Win Timer
Originally the plan was that defenders would try to survive as long as possible against the attacker. This, however, meant that games could potentially go on for hours! A win timer has been introduced, if the defenders hold out for 20 minutes they win the game!
Attacker Income Timer
The attacker receiving income every second as shown in the trailer was overkill! The income of the attacker ended up becoming so exponential that the only way the game could last longer than 10 minutes was if the attacker purposefully didn't use their money. Income is still added every time a unit is spawned, but now you only receive that income every 30 seconds!
Attacker Unit Cap
Unfortunately, as you may have noticed the trailer was a little laggy for the seconds that over 200 units were on the map. Besides being intensive on the computer, it was also intensive on the server as sending that much information constantly was making the units teleport or walk in-place. So the attacker is now capped at 50 units being on the map at once. This also helps to balance as the attacker becomes required to use more and more powerful units as opposed to spamming low-tier ones.
Join the community! (And the Discord)
It has been absolutely insane getting all this done in the short time since the trailer released! I've been doing all-nighter's, drinking Redbull, and it's really started to take a toll on me physically and mentally. But I do it because I love it, and I love to see people having fun playing something I worked so hard on. If you want to discuss the game, report bugs, make suggestions or just let me know that you're having fun playing the game, you can join us on Discord:
https://discord.gg/ArEbAut
Also consider picking up the Supporter Edition DLC! With the game's insane growth I've added a message to the main menu informing players that you may not get in due to the servers being full! That's insane to think about, but with support I can buy new servers so everyone can play.
https://store.steampowered.com/app/1147770/They_Cant_Stop_All_Of_Us__Supporters_Edition/
That's all for this update, I hope everyone has a fantastic time playing!
Sincerely,
Blake Gillman