Level 2 strongholds in this game are particularly important as they serve as strategic locations. There are multiple types of level 2 strongholds, and below is an introduction to what these strongholds entail. When players arrive at the corresponding location, what should they prepare, and what should they do if they encounter a boss? These are all very important considerations.

One of the level 2 strongholds is the volcanic cave, which is relatively simple in terms of difficulty. It is recommended that players form a team of two. Upon entering this stronghold, carefully observe the surroundings as there are hidden mechanisms. At the deepest part of the stronghold, there is a boss with high health and powerful skills. Players need to work together as a team to defeat it.

The Sentinel Base is also one of the level 2 strongholds, and its difficulty is slightly higher than that of the volcanic cave. Players still need to form a team and be well-equipped, especially with anti-pollution gear, before entering, as there are AI robots and mutated creatures here. Due to their strong combat abilities and the presence of mechanisms, it's advised for players to clear out the smaller enemies first.

The Nexus Crossing is of medium difficulty. Players entering here should bring high-level equipment and anti-pollution gear, as well as extra ammunition. When entering as a team, one member should be responsible for drawing the monsters' attention, while another focuses on dealing damage. The entire team needs to coordinate effectively.
The Gobi Base has a medium level of difficulty. To enter, players should have higher-level equipment, anti-pollution gear, and additional supplies such as medicine and ammunition. When entering, carefully observe the surroundings to find any hidden mechanisms, as there may be hidden treasure chests. The boss here is called Frost Doctor, and although the difficulty of defeating it is moderate, players still need to be cautious.

The Hospital is a rather eerie and terrifying place, and players should form a team to enter, as the difficulty is relatively high. Players need to have a pass and fuses, and even anti-pollution armor, due to the severe pollution in the area.
There are other regions within the level 2 strongholds of Adversity Rebirth, but the ones introduced above are particularly significant. It's recommended that players follow the precautions mentioned when entering these strongholds, as each one has its unique features and requires careful and cautious entry.