As the battle develops, the plan cannot address obvious enemy moves as they occur and synchronization fails. Direct Fire Control Failures I-4. Defensive and particularly offensive fire control plans may not be developed or may fail in execution. Some units do not designate target reference points, EAs, and priorities. Some may designate but fail to adhere to them.
Units fail to tie control measures to recognizable terrain features.
Weapons positioning can be poor, and fire discipline can break down upon contact. Land Navigation Failures I-5. Navigation is often complicated by difficult terrain or weather and visibility. Navigation problems can cause units to stray out of sector, report wrong locations, become disoriented, or employ FS weapons from wrong locations. As a result, friendly units may collide unexpectedly or be erroneously engaged.