Losing all the Mechs on your team is not the only way to lose a battle. There are other victory conditions as well:
- You can lose if the other Team amasses 100 Influence by capturing and holding Control Points
- You can lose if time runs out and the other Team has more Influence than your Team
Deathmatch 5 vs 5 & Deathmatch 2 vs 2
- You can lose a Round if your Team has lost more Mechs than the enemy Team when time runs out
