Oddly enough, the position of sniper is one of the most suitable combat roles for women. They are far from the action (i.e. they don't get scared) and are not required to perform heavy physical activity. Russia had some renown female snipers during WW2.Every sub crew that went to test depth since 1985 is extremely lucky that nothing happened.
We now have a female sniper.
That said, her promotion is almost certainly a result of politics, not her skill.