While you'll likely start your life in a safe city, which is also where the game's weapon and item crafting will take place, you'll eventually find yourself on a battlefield, duking it out against computer-controlled hybrid monsters or players from the opposing faction. Currently, the game is planned to launch with two major cities (one for each faction) and eight smaller cities, along with about 80 battlefields, each of which can house up to 200 players at once. We were shown numerous concept-art images that depict battlefields based on ruined real-world locations, such as waterlogged harbors and half-destroyed skyscraper complexes. We also had a chance to see a prototype battlefield in action, which resembled a craggy series of foothills at night, crawling with sharp-toothed, multi-eyed hybrids.

For much of the game, you'll spend your time either fighting actively in competitive battles or performing the game's many quests, which will take the form of story-based tasks, field quests, and large-scale "raid" quests with large groups of other players. The developers at Webzen plan to encourage players to play together by letting them form small squads of up to four players each, larger platoons with five squads each, and finally, companies, which include five platoons (with a total of up to 100 players in each).

Groups will also be able to fight battles on the game's battlefields, either in traditional shooter modes such as freeform deathmatch, team deathmatch, and capture the flag, as well as the game's radar domination and part pickup modes. Radar domination requires two opposing teams to try to capture and hold various radar towers throughout the map by holding the area nearby, similar to the Battlefield series' conquest mode. Part pickup requires teams to scavenge various robot parts on the battlefield in a competitive race to see which team can assemble a gigantic mech first. When you pick up and carry a part, you'll act much like the flag carrier in a CTF game--if you're taken down, you'll drop the part and give the enemy a chance to recover it.