Overview
CTI Sandstorm Checkpoint is our Insurgency: Sandstorm server. It runs Checkpoint co-op: everyone on the server plays as one team, taking objectives from AI insurgents.
| Setting | Value |
|---|---|
| Players | 12 |
| Maps | 56, with day and night variants |
| Weapons | ISMC arsenal (ISMCmod) |
| Supply points | 200 |
| Class limits | None |
| Movement | 70% speed, with ISMC high-ready carry and tactical sprint |
| Mod download | About 40 GB |
On top of stock Checkpoint, the server adds HQ fire support you can call in, booby-trapped doorways, enemy drones and mortars, and counter-attacks if the team stalls. Each one is covered below.
Get the Mods
The server runs about 40 GB of mods. Your game can download them when you join, but that's exactly when games tend to crash. Grab them from the main menu first.
- Sign in on mod.io with the same account your game uses. That's usually Sign in with Steam.
- Open the CTI Sandstorm Checkpoint collection, click Follow collection, and keep “Subscribe me to all mods in this collection” ticked.
- Also subscribe to ISMCmod on its own page. mod.io can't put mods that depend on other mods into a collection yet, so it isn't in the collection.
- Launch Sandstorm and stay on the main menu until the downloads finish.
Connecting
- Own Insurgency: Sandstorm on Steam and have it installed.
- Get the mods first. See above.
- Join: in the in-game server browser, search “CTI Sandstorm Checkpoint US East” and join it. The button on the Servers page launches Sandstorm for you.
- Join the CTI Discord at discord.gg/ctiservers for announcements, finding players, and support.
First Spawn
ISMC shows a changelog popup over the loadout screen, and it can't be closed from there. Deploy with any loadout, click the popup away once you've spawned, then set up your kit. The popup only comes back after an ISMC update.
Round Rules
- Timer: each objective gets 99:59 on the clock, and it resets after every capture.
- Map vote: if the team fails a map twice, the map vote comes up.
- Movement: runs at 70% speed, with ISMC's high-ready carry and tactical sprint.
- Loadouts: 200 supply points and no class limits, so bring what the team needs.
HQ Fire Support
After your team completes objective A, then C, E and so on (every other objective), a Team Leader or Advisor gets an HQ offer in the chat box. Reply in chat within 3 minutes. You get one strike per offer.
1. Pick the strike by typing its command in chat:
| Type | Strike |
|---|---|
%a10 | A-10 attack run |
%artillery | Artillery barrage |
%rockets | Rocket barrage |
%mortars | Mortar strike |
2. Pick the target by typing its number:
| Type | Target |
|---|---|
1 | Your own position |
2 | The enemy objective |
3 | The nearest enemy group |
Warn your team before you call a strike on your own position.
Booby-Trapped Doors
Doorways near the active objective can be rigged with frag grenades, C4, IEDs, incendiaries or flashbangs.
- Look for a thin wire across the bottom of the doorway.
- Knife the wire to disarm it.
- Don't brush it or swing the door wide, or you'll set it off.
- Call out traps you find so the rest of the team doesn't walk into them.
Counter-Attacks
If you see “The enemy is regrouping” after a capture, get onto the next objective and start capturing it within about two minutes. If you don't, the enemy hits the point you just took, with mortars and rockets. Keep pushing.
Enemy Drones & Mortars
Every few minutes the enemy can send grenade drones, IED drones or mortars. They go after marksmen and team leaders, or anyone bunched up. Spread out, and keep an ear out for drones overhead.
Troubleshooting
Crashed while joining?
- Relaunch the game, let the mods finish downloading at the main menu, then join again.
- Still crashing? Old Sandstorm mods you subscribed to in the past can clash with ours. Open your mod.io library, unsubscribe from any Sandstorm mods that aren't in the collection (keep ISMCmod), then restart the game and join again.
- Still stuck? Post this log file in a support ticket in the CTI Discord:
%LOCALAPPDATA%\Insurgency\Saved\Logs\Insurgency.log
Changelog popup covering the loadout screen?
That's ISMC's changelog. Deploy with any loadout and close it once you've spawned. See First Spawn.
Help & Rules
CTI's general rules apply on CTI Sandstorm Checkpoint, as on every CTI server: no cheating or exploits, no hate speech or harassment, no griefing, and follow staff instructions.
- Report a player: open a support ticket in Discord with the player's name, the time, and evidence (screenshots or video).
- Ban appeals: open a ban appeal ticket in Discord. Senior staff review appeals within 48 hours.
- Technical issues: open a support ticket in the CTI Discord.