|Primary Weapon||Personal Ion Cannon|
|Grenades||EMP Grenade x1|
Sydney wears military boots, trousers, kneepads, gloves, a blue leather jacket with the GDI logo on the back, and a tank top under it. She has brown hair, and a small necklace.
Sydney's Personal Ion Cannon has moderate range, very low rate of fire but very high damage in a single shot; therefore she is best employed at taking potshots against enemy vehicles, possibly finishing off damaged ones in the process of retreating. Against fast moving vehicles, it is advisable to aim at the spot where they would go next in order to hit them. After firing once, a Sydney should seek cover until her weapon has recharged.
Sydney is able to deal high damage against infantries as well, and also being able to kill them by scoring a headshot, but the slow recharging sequence of her weapons will prove costly, especially against infantries with automatic weapons, should she miss a shot; therefore, her effectiveness against infantry is determined by the player's aiming skills and reflexes, akin to sniper characters such as Deadeye or Havoc. Still, her weapon has only one level of zoom and a slower rate of fire compared to Sniper Rifles and Ramjet Rifles.
Sydney share the same weakness that snipers have: she is usually at disadvantage if players get close to them; infantries such as Chemical Trooper, Officer, and Mendoza are preferred for their high rate of fire when confronting her in close quarters. When approaching her, strafe and jump around with alternating movement so to not follow a predictable pattern to raise the chances of avoiding a headshot; even so, a veteran Sydney might still be able to snipe your head even when you are moving around.
For Vehicles, Sydney will prove to be a serious threat, jumping out to fire at you and then falling back into cover. Usually she will strike at you from infantry paths, so you cannot ram her over. Laying suppressing fire with APCs or tank shells will not work very well in this situation. It is best to either retreat, have some Engineers backing you up, or just remaining around to act as a distraction in order to allow teammates to deal with her.