The Second Polygar War was more stealthy and covert in nature. He forms a buddy bond with the Autobot stealthy assassin Cliffjumper. The aircraft is less stealthy than flying wing UAVs. Snipe hunters therefore needed to be stealthy in addition to being good trackers and marksmen. Passive sonar is stealthy and very useful. This method of guidance allows it to be stealthy and insusceptible to countermeasures. A much more sophisticated and stealthy design is the 520-ton "Houjian" class. He is known for being very stealthy and skilled at remaining unseen. They are cumbersome on land, but stealthy and sleek in the water. This involves avoiding large-scale combat, and focusing on small, stealthy, hit and run engagements. Systems for detection and tracking of stealthy aircraft are a major problem for anti-aircraft development. That technique can be used to produce inexpensive stealthy low-power radar. It was to be a unique, stealthy, flying wing design. The playing styles range from head-on assaults to stealthy infiltrations and assassinations. In complete contrast to Tyre, Sogdian Rock was captured by stealthy attack.