This is the 14021st most frequent Russian word.
огневые
"Огневые" translates to "fire-related" or "fiery" in English, often referring to something involving fire or flames.
In this sentence, 'огневые' is an adjective describing 'стрельбы' (fire drills), implying exercises involving actual firing of weapons.
Военные учения включали огневые стрельбы.
The military exercises included live fire drills.
In this context, 'огневым' describes 'испытаниям' (tests), indicating trials involving fire or intense conditions.
Спасатели должны быть готовы к огневым испытаниям.
Rescue workers must be prepared for fire tests.
Here, 'огневых' modifies 'характеристик' (properties), referring to properties related to fire or combustion.