Final answer:
The first step in HLZ setup (LZ/PZ ops) is selecting suitable locations for the LZ and PZ based on factors like terrain, accessibility, and security.
Step-by-step explanation:
The first step in HLZ setup (LZ/PZ ops) is to select a suitable location for the landing zone (LZ) and pickup zone (PZ), which are designated areas for helicopter operations.
The selection of the LZ and PZ is based on various factors such as terrain, accessibility, security, and distance from the intended operation area.
For example, in a military operation, the LZ and PZ should be secured from enemy threats, have adequate space for multiple helicopters to land, and be close enough to the target area to facilitate quick deployment.