The answer is of course you can if it is means dislodging the OPFOR but you cannot take them out. You still need to do an actual airsoft gun hit, "knife kill", or BB/Pyro grenade blast to do that. It also depends on your gamesite treats such use. Bravo Whiskey plays in the snow with an MP5 in this gameplay video... "Hello airsoft world and all who inhabit it. Todays video is gameplay from my local field, The Bingfield, located in Alton, IL.
Video from Bravo Whiskey on the G&G Day 2020 at The Rock Airsoft that took place last 28 July... "This is gameplay from G&G Day 2020 at the ROCK Airsoft field in Bolivar, Missouri.