There are a few key differences. What we are talking about here is primarily a slow-paced experience, where you need to move slowly and take your time, making your shots count. Running and gunning or bunny hopping will get you killed. There is no regenerating health or cover systems, and no jumping into a fighter jet, it's all down to your skill, your rifle, and your teamwork.
ARMA is indeed hardcore. But it focuses on big military battles, where you can jump into a tank or a helicopter, in big battles. CHTC focuses on CQB, where it is your team against a small number of adversaries in a tight environment, where every shot counts.
Yes, one of the major decision points when we evaluate engines is the mod tools available, and any mod tools we develop internally will be released. We believe that empowering the community to create content is key to a successful game.
We have investors (not publishers, but VC folks) who are interested but unsure if there is truly a market for real tac shooters. This seed money will be enough to fund startup and show the investors the market is real.
While we can't name names due to contract negotiations, we have veterans from:
Games they've worked on include:
Rainbow Six, Rainbow Six Rogue Spear,
Ghost Recon PC, Desert Siege, Island Thunder, GR2: Summit Strike
World of Tanks
Age of Empires Online
Halo 1, 2, 3, Reach, 4
The Suffering 2
Gotham City Imposters
Lord of the Rings: War in the North
Realism will be the basis for the gameplay features, balanced with fun. Weapons handling and character damage will be based on realism. No regenerating health, see around corner cover systems, or magically resurrected team members.