When I first started playing XCOM 2, I made the same mistake a lot of new players do. I thought each class worked fine on their own, so I’d just grab whatever soldiers were available and throw them into the mission. I brought two snipers, a ranger, and called it a day. Turns out, that’s a great way to get your entire squad wiped. Without the right synergy between your classes, even your strongest soldiers can get overwhelmed.
Once I started pairing classes together, everything changed. The right combinations turn your random squad into a well-oiled machine that can beat any mission, even on Commander difficulty. These are the class combos that carried me through my first Ironman run, and they’re so simple even beginners can use them. No weird late-game builds required.
1. Grenadier + Sharpshooter
This is the classic combo that works for literally every mission. It’s so good, I bring this pair on almost every single operation.
Here’s how it works: The Grenadier goes first. They shred the enemy’s armor with their cannon, or blow up their cover with a grenade. They also apply the Holo-Targeting perk, which gives everyone else +10 aim against that target. Then the Sharpshooter goes right after them, and one-shots the exposed, armor-less enemy.
I used this combo to take out Sectopods and Mutons all the time. The Grenadier strips the armor, the Sharpshooter deletes them before they can even move. It works on every enemy, from the early game Thin Men to the late game Ethereals. I’ve never found a mission where this pair didn’t work.
2. Ranger + Specialist
This is your scouting and survival combo, perfect for early game missions where you’re still learning the map.
The Ranger is your point man, right? They run ahead, scout the pods, and take out the first wave of enemies. But Rangers are squishy, right? That’s where the Specialist comes in. The Specialist stays back, and uses their Gremlin to heal the Ranger from halfway across the map, no need to run up to him.
And if you run into a mech or a turret? The Specialist can hack it, disable it, or even turn it against the aliens. I had this pair on my first terror mission, and the Ranger ran in to save the civilians, while the Specialist healed him through all the return fire. We saved every civilian, no losses.
3. Psi Operative + Grenadier
Once you unlock Psionics, this is the most broken combo in the game. It turns any group of enemies into free XP.
Here’s the play: The Psi Operative goes first. They mind control the biggest, baddest enemy in the pod, or panic the rest of them. Now half the enemies are stunned, confused, or fighting for you. Then the Grenadier goes, and blows up the rest of them with a grenade.
Even better, the Psi Operative has the Inspire ability, which gives the Grenadier an extra action. That means the Grenadier can throw two grenades in one turn, wiping out an entire pod before they can even react. I used this combo to take out three pods at once once. It was insane.
4. Reaper + Sharpshooter
If you’ve got War of the Chosen, this is your long-range stealth combo. It’s perfect for those open-field missions where you have all the time in the world to pick off enemies.
The Reaper is your scout. They stay concealed, sneak across the map, and spot all the enemies for you. They don’t even have to shoot, they just give your Sharpshooter line of sight. Then the Sharpshooter, sitting back at the evac zone, uses Squadsight to snipe every single enemy from across the map.
I did this on a retaliation mission once. The Reaper snuck around, spotted all the aliens, and the Sharpshooter killed them all without ever moving. We didn’t even get spotted once. It was like playing a completely different game.
5. Ranger + Grenadier
This is your shock and awe combo, perfect for those timed missions where you need to clear the map fast.
The Grenadier goes first, throws a flashbang to stun the entire pod. That disables all their abilities, so they can’t shoot back. Then the Ranger runs right in, Run and Guns, and kills all the stunned enemies before they can wake up.
I used this combo on those rescue missions where you have 8 turns to save the VIP. We would run in, flash the whole room, the Ranger would kill everyone, grab the VIP, and get out before the aliens even knew what hit them. It was the only way I could beat those timed missions on Ironman.
6. SPARK + Sharpshooter
Got a tough boss mission? This is the combo you need. It turns your SPARK into an unkillable tank, and your Sharpshooter into a boss killer.
The SPARK runs right up to the boss, and tanks all their attacks. SPARKs have so much armor, they can take hits from Sectopods and Berserkers like it’s nothing. The boss will focus all their fire on the SPARK, because they can’t kill him. Meanwhile, the Sharpshooter sits back, and snipes the boss to death from across the map.
I used this to beat the final mission. The SPARK tanked the Avatar’s attacks, and the Sharpshooter shot him down in three turns. We took zero damage to our actual soldiers, it was perfect.
7. Specialist + Psi Operative
This is your all-purpose support combo, perfect for those tough late-game missions where everything goes wrong.
The Psi Operative handles the crowd control. They mind control the big enemies, panic the small ones, and keep the aliens from shooting your team. The Specialist handles the healing. They use their Gremlin to heal everyone, hack any mechs that get through, and keep your team alive.
I had this pair on my last Chosen assassination mission. The Psi Operative mind controlled the Chosen, the Specialist healed my team through all the alien reinforcements, and we won without losing a single soldier. It’s the most flexible combo there is, it works for literally anything.
8. Skirmisher + Templar
If you’re playing War of the Chosen, this is your melee wrecking ball combo. It’s perfect for taking out the Chosen themselves.
The Skirmisher has that insane mobility, right? He can grapple around the map, pull enemies towards him, and disrupt their formation. The Templar follows right behind him, and cuts through the stunned enemies with his psionic sword. Bladestorm lets him counterattack every enemy that moves, so nothing can get through.
I used this to kill the Assassin Chosen once. The Skirmisher pulled her out of cover, the Templar cut her down in two hits. It was over before she could even teleport away. These two together can solo an entire mission by themselves.
Final Thoughts
The biggest mistake I made early on was treating each class like they were independent. I thought a good soldier could win fights on their own, but that’s not how XCOM works. The real power isn’t in the individual classes, it’s in how they work together.
These combos are so simple, you don’t need any fancy late-game upgrades or gene mods to make them work. I used them from the very first mission all the way to the end, and they never let me down. No matter what mission you’re going into, one of these pairs will have you covered.
Once you start using them, you’ll see what I mean. Your squad will go from getting wiped every other mission to clearing even the toughest missions without breaking a sweat.