What happens if you kill teammates in CS2?
Team killing in CS2: minus $300, a kick after 300 team damage or a team kill at round start, then a cooldown from 30 minutes to a week. Which modes have friendly fire and how to avoid getting kicked by accident.
Killing a teammate in CS2 costs you $300 on the spot. Deal too much team damage in one match and the game kicks you, and a matchmaking cooldown follows: anywhere from 30 minutes to a week. None of this applies everywhere, though. In Casual you can’t hurt teammates at all, while in Premier and Competitive you can, but bullets only do a third of their damage to your own team.
Which modes have friendly fire
The friendly fire rules sit right in the game folder, in the gamemode_*.cfg files for each mode. We opened them in the current build (files dated October 16, 2026) and put the numbers in a table. The percentages show how much of the normal damage a teammate takes.
| Mode | Bullets | HE grenade | Fire and other | Team kill |
|---|---|---|---|---|
| Premier, Competitive | 33% | 85% | 40% | -$300 |
| Wingman | 33% | 85% | 40% | -$300 |
| Rush (3v3) | 33% | 85% | 40% | -$300 |
| Casual, Retakes | 0 | 0 | 0 | no damage |
| Deathmatch, Arms Race | 0 | 0 | 0 | no damage |
Grenades are the sneaky row. A bullet loses two thirds of its damage against a teammate, but an HE grenade barely loses anything: it still does 85%. Molotov fire hits teammates at 40%, but it burns for several seconds, so running through it still hurts. And your own grenade isn’t softened at all in Premier: your HE does full damage to you.
When the game kicks you
Auto-kick is on by default in CS2, and the limits are set by server variables. These are the default values:
| What happened | Result |
|---|---|
| 200 team damage in a match | warning in chat |
| more than 300 team damage in a match | kick |
| killing a teammate in the first 5 seconds of a round | kick |
| more than 50 team damage at round start | warning, then kick |
The counter uses the damage your teammate actually lost, after the cut to 33%. That’s why one stray spray into someone’s back rarely gets you kicked, while three or four of those in a match already put you at risk.
Players have described one more rule for years: a third team kill in a match also gets you kicked, even if your total damage is below 300. We couldn’t find a separate variable for it in the game, so treat it as a community observation rather than a documented rule.
The start of a round is punished hardest. Everyone stands shoulder to shoulder, and one nervous AWP shot or a grenade dropped at spawn gets you kicked straight away, no 300 damage needed.
Valve does tweak these rules now and then. On October 25, 2023 it fixed a bug where damage from your own molotov counted as team damage. On September 24, 2026 it changed the team damage kick rules for the new Rush mode, and on September 22 it closed a loophole that let players avoid a kick ban.
What happens after a kick
You can’t rejoin the match. For the game it’s the same as abandoning: a loss and a matchmaking cooldown. The usual cooldown ladder in CS2 looks like this:
| Offense | Cooldown |
|---|---|
| first | 30 minutes |
| second | 2 hours |
| third | 24 hours |
| fourth and later | 7 days |
Your cooldown level drops if you play a week without new offenses. Valve doesn’t publish this table officially. The numbers come from the CS:GO days, and players describe the same steps in CS2.
The team pays twice, by the way. They play four against five, and the team killer’s -$300 often wrecks the next round’s buy as well.
Then there’s Trust Factor. Valve doesn’t say what goes into it. We’d assume team damage kicks count, and a player who keeps getting kicked ends up queuing with players just like them.
Can you report a team killer?
Not for griefing directly. The CS2 report window has four options: abusive communications or profile, wall hacking, aim hacking and other hacking. There’s no separate griefing option like CS:GO used to have.
So against someone who shoots teammates on purpose you’re left with auto-kick and a vote kick. Be careful with votes too: kicking others too often, or getting vote-kicked too often yourself, also leads to a cooldown.
And don’t shoot back at a team killer. Every bullet you return goes on your own team damage counter, and you can both end up kicked.
How to avoid killing teammates by accident
Most team damage kicks happen without any bad intent. Here’s what helps.
Don’t fire when a teammate steps into your line of fire. Long-range spraying is the worst: while the recoil pulls your crosshair around, a teammate has time to run out in front of you.
Throw grenades where your teammates aren’t, and won’t be a second later. A molotov at the feet of a teammate who is just walking onto the site is a classic team kill. If your grenades fly too far, the short right-click throw helps: we covered range control in how to throw grenades at different distances in CS2.
Keep your weapon down for the first seconds of a round. No grenades at spawn, and don’t aim at teammates even as a joke.
When you wallbang walls and crates, check the radar first. A teammate behind cover takes damage from a wallbang just like an enemy does.
Flashbangs do no damage and don’t count toward a kick. But a blinded teammate dies just as easily as a wounded one, so throw them with the same care.
If words like “wallbang”, “prefire” or “trade” are still new to you, check our CS2 slang dictionary.
