For defense, always have Controllers and sentinel as anchors in most cases expect maps like ascent where you usually have sova as b anchor sometimes, if you are jett you should try to get agressive since u have dash but if they are good and can shoot back/use utility properly you wont have an easy time so you will need to be smart about it and maybe try to have a teammate to bait for you or something, if you are reyna just straigh up go for fights that will most likely be 1v1 and dont be smart about it you can heal doesnt matter if you end up low hp, if you play cypher please do not play site with your setup in ranked games, try to use your camera aggessively for info, most people just rush in ranked so they wont spread around the map and break your camera, if you are sova/skye/kayo please be proactive and keep looking for info with your utility, specially if they cut noise etc