Full Metal Demo: Arma II

Update: Mirrors and some troubleshooting tips in this thread.

The demo of soldiering giganto-sim Arma II, which contains a surprisingly large chunk of the full game - including a limited version of the extremely versatile scenario editor - is now available. Get it here.

The demo comes to just under 3gb, but it's an essential download for those of you who want to check out compatibility and performance issues before buying. And anyone else vaguely interested in the game, obviously. I've been caning the full thing for the best part of two weeks, and I've kept delaying the RPS review because, well, I just keep finding more stuff to do in it. I'll stop tinkering and post full impressions early next week. Launch trailer and full demo content details below.

From BIS:

Overview of the demo content:

Boot Camp:
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Boot camp provides you with several scenarios which can help you to better enjoy the ArmA 2 demo.
To play the scenarios, start the game and select SingleplayerBootcamp from the main menu. The following tutorials are available:
Basic Training - You can learn the basics of the game controls, movement and principles of first aid and infantry combat in this tutorial. If you’re new to the world of military simulations, it is strongly recommended to learn these basics.
Parachute Jump - In this tutorial, you have a chance to try precision-jumping with a steerable parachute.
Helicopter - Learn the basics of helicopter flight, transportation of troops and attack chopper tactics.
Team - Learn the basics of your team’s command and control. This tutorial will teach you how to command your subordinates and manage your team.
High Command - You are often given command of whole groups in the bigger battles (e.g. Death Valley scenario). This tutorial describes the basics of the high-commander’s job.
Construction - In a large-scale scenarios (Death Valley in the demo), you can construct defenses, HQ buildings or structures which enable you to enroll certain unit types.
This tutorial will teach you the basics of the construction interfaces.

Singleplayer:
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Three scenarios and an editable mission template are featured in the demo. Scenarios are accessible from the main menu’s Singleplayer > Scenarios section.

Trial by Fire – A marine assault team is inserted on the Utes island to capture an OPFOR base. To successfully complete this mission, advance together with the rest of your team, follow your orders and avoid being too brave.

Death Valley - Small mission to introduce and also teach you how to use the RTS/FPS blend mode for ArmA 2 - The Warfare mode.
In this large-scale battle, your objectives are to capture all strategic locations or destroy all structures on the enemy base in your area of operation.
It is recommended to play Team, High Command and Construction tutorials before you start playing this mission.

Benchmark - This scenario is an unplayable cinematic benchmark test that will help you determine the best setting for playing ArmA 2 on your computer or to compare your hardware. Average FPS is displayed at the end of this scenario.

Mission Template: Basic - To start this mission template, activate “My missions...”, select “”, “01:Basic”, choose the side you want to play for, and edit the mission conditions.

Multiplayer:
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It’s possible to play a multiplayer battle or customize some of the available mission templates.

To start the template-based multiplayer, select “< >” and select from the list of available templates. Note that templates are customizable, and you may prepare many variations of existing setups.

Death Valley - Multiplayer version of the scenario. Up to 16 players may take part in this battle. In “Create game”,
Multiplayer Mission Template: Deathmatch - Free-for-all fight for up to 16 players.
Multiplayer Mission Template: Team Deathmatch - Two teams fight in a small area. Up to 16 players may play in this scenario.
Multiplayer Mission Template: Seize The Area - Cooperative scenario for up to 6 players, whose task is to eliminate all hostile units in a designated area.

Mission editor:
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Limited version of Mission Editor is present in the demo. Note that it's not possible to either save or load a custom mission in the demo.

Check http://community.bistudio.com/wiki/ArmA:_Mission_Editor to learn more about the basic features of the editor.

And those system specs:

Minimal PC System Requirements
• Dual Core CPU (Intel Pentium 4 3.0 GHz, Intel Core 2.0 GHz, AMD Athlon 3200+ or faster)
• 1 GB RAM
• GPU (NVIDIA GeForce 7800 / ATI Radeon 1800 or faster) with Shader Model 3 and 256 MB VRAM
• Windows XP

Recommended PC System Requirements

• Quad Core CPU or fast Dual Core CPU (Intel Core 2.8 GHz or AMD Athlon 64 X2 4400+ or faster)
• 2 GB RAM
• Fast GPU (NVIDIA GeForce 8800GT or ATI Radeon 4850 or faster) with Shader Model 3 and 512 or more MB VRAM
• Windows XP or Vista