Since they nerfed the ability to cast an AoE through the minimap ping commands, yes. The only thing you can do to improve reliable positioning is the camera angle stuff. Keep in mind, though, that setting a really long zoom setting will cause all kinda wierdness in instances with fairly low roofs. You may want to set one up for indoors, too. Me, I just have one setting that works well both indoors and outdoors for this.