Theatricality and deception are powerful agents
Just because you breach a wall, doesn’t mean you have to go through it. In fact, one of my favourite things to do is to equip Thermite with regular breaching charges and his special thermite charges, and plant them at separate points. The thermite charge offers the enemy team a big audio/visual cue that a breach is about to happen, so I either activate it first as a distraction, or use the regular breaching charge to make the enemy think I’m entering on one side, while attacking through the other. If you get the drop on an enemy looking the wrong way, they’ll rarely have a chance to react before they’re dead.
Stun grenades are underpowered
This point acts as both feedback to Ubisoft and a great tip for playing Siege. A lot of players will rush in immediately after their stun grenade has gone off, regardless of whether it’s effectively stunned anyone in the room. If you see a stun grenade fly into your room, spin your view to the nearest wall and you won’t be blinded. Remember to switch back to its point of origin for a shot at taking down an opponent (or more than one) who think that you’re blind. This also means that you shouldn’t expect a stun grenade to completely blind a room when attacking, either, so exercise a little caution when following up on a stun grenade.
Match your Operator to your team
And also match it to the mode. There’s nothing worse than seeing someone use Fuze during a hostage mission: it means they probably won’t get to use his grenade-spamming special ability, or they’ll use it and kill the hostage, resulting in an automatic loss. More important, though, is matching your Operator to what your team has selected. Using VOIP is a great way to determine what you need offensively or defensively, but there are certain Operator staples that should always be included: Thermite for attackers, and Rook (armour boost) for defenders. Particularly if you’re playing against a team that employs specific tactics, there are often great counter combinations if you match the right Operators and counter-tactics.
Earn easy renown
If you’re unfamiliar with the specific mechanics of Siege, you should watch the tutorial videos. If you are familiar, watch them anyway for easy renown. You can skip them and still score the in-game currency to spend on Operators. I churned through the Situations to score renown to unlock Operators early on (there’s nothing worse than having to pick a generic Recruit with no special abilities online), and even went back to get three stars on most of them. The trick is you don’t have to complete all objectives when replaying to score the missing stars: just the one/s you didn’t complete on the first run.
Customise your loadouts
Early on, it’s best to favour unlocking Operators over customising their weapons, but once you’ve got a few attackers and defenders, start investing in weapon customisations. For my primary weapons (except for the shotgun), I always add a scope, a compensator to help with recoil (or suppressor, for quieter shots but reduced damage), and a front grip for better control. I tend to throw a suppressor on my pistols because they’re great for silently taking out cameras, or playing stealthy if my primary weapon doesn’t have a silencer.
Destroy enemy intel-gathering tools
Cameras and drones are your best friends in Siege. Lazy teams will leave cameras so that defenders can track their movements and bolster defences in areas where they know their foes are going to come through. Defenders should prioritise destroying drones during the preparation phase at the start of each round, and call out each time so your team can tally the drone kills (maximum of five in the starting phase). Drones can be slowed with barbwire, stopped with disruptors, or destroyed with shock wire, but they can also die with a single bullet. When I play with my friends, we tend to send out a couple of players to hunt drones before they get to our location, which denies the attacking team crucial intel, and means they have to waste time finding where we’re defending from. Remember, as an attacker you also have a backup drone, so don’t be afraid to scout during the action phase, as long as your Operator is in a safe place while you’re controlling it.
Take down shield bearers fast
Operators that wield shields are tricky contenders. They can basically soak up all damage from the front, but they’re forced to fire (mostly inaccurately) from around their shield to preserve front-on protection. Encourage a teammate to flank a shield bearer from the side or behind as you tempt them into attacking you, or aim for their feet if they haven’t spotted you. When they aim down sights, they’ll reveal their heads, so sometimes you can score an easy one-shot kill if they’re looking to kill you, but a lot of pistols are deadly, so it’s best to bait them into a crossfire. Alternatively, use nitro charges or Smoke’s deadly gas grenades to dispatch them quickly or deter them from advancing further. Be aware that a good team will generally have someone backing up the shield bearer, shooting above or around the cover, so keep an eye out for this tactic, too.
Soap on a rope
Rappelling up or down buildings is a great way to get around the map quickly, and to have a higher vantage point on defenders below. Breaching through windows is a risk/reward thing, but incredibly satisfying when it works. You can jump out from the window and activate your breaching charge (or instruct someone else to do it) when you’re at the apex of the jump, so you’ll go through just after the explosion and without taking any damage from the charge. A better trick is to lean in from the sides of the window and shoot through holes that you’ve pre-made or the enemy has made. Inverting your pose and shooting from above is even sneakier, but bear in mind that there’s a mechanic that means you won’t be able to see in the room straight away as your Operator’s eyes adjust between the varying light levels. Defenders, listen for the familiar rappelling noise, and if you spot a rope on an open window, it means they’re below it (this is why attackers should rappel beside or from above windows).