Your account level must be at level 5 to play against other humans which is required for most achievements.How do I unlock Untouched?
You must stop the enemy team from earning any point. Points are earned in various ways depending on the game mode you have selected.Siege
The way to score points in Siege is capturing the payload, pushing the payload to the objective, and defending against a team that has initial capture.
You must capture the payload and push it all the way twice to score all 4 points and not allow the enemy to score any points
For a more detailed explanation of Siege:
The way to score points in Payload is by pushing the payload to the objective or defending against the other team when it's their turn to push the payload.
You must capture the payload and stop the enemy payload to score both points and not allow the enemy to score any points.Survival
The way to score points in Survival is by eliminating the other team before they eliminate your team.
You must win 5 rounds in a row to score all 5 points and not allow the enemy to score any points.