that is called flag juggling and it is very important. flag juggling helps you get the flag across the map much faster which leads to an easier cap. if you just hold it, you are just giving the enemy team more time to grab your flag and bring things to a stalemate. majority of the time you pull the flag, you should be juggling unless you're one of those annoying rambo flag runners who just walk in and grab the flag with no -Yoinks!- to give about how many enemies are dead or alive. when you juggle, be sure to sprint and thrust to get that flag across the map as quick as possible. the only time you shouldn't be juggling is if you're in a tight space, if you have a low roof above your head, or if you are in a situation where you really can't give off your position like if you sneaked into their base and pulled it with all 3 or 4 enemies up. once you are spotted though, you might as well get the kill if possible and begin juggling. for the most part unless you are against clueless noobs, the enemy team will know where you're at or what route you took which is also why you would want to juggle. if you really want to see the full benefits to juggling or want to pick up on other tricks, try watching some pro league and pay attention to what the casters say if you don't already watch it.