CAD/MDT Guide
CAD/MDT for Roleplay: FiveM, Roblox, and Everything Else
A CAD/MDT for roleplay works on more than FiveM. Here is what carries over to Roblox emergency response servers, Arma units, and Discord based roleplay.
Most CAD/MDT articles assume you play GTA V. Plenty of communities do not, and plenty run more than one game at once.
The good news is that the workflow travels. A call is a call whether the scene renders in a game engine or exists entirely in a text channel. What changes between platforms is how much the system can see on its own.
What Stays the Same Everywhere
Every roleplay platform needs the same four objects. Calls, units, records, and permissions.
The core objects
Calls hold a location, a type, a priority, and an assignment. Units hold a callsign, a status, and a person behind them. Records hold citizens, vehicles, warrants, and reports. Permissions decide who can see and change what.
Those four things run your server no matter what you play. Everything else is presentation. If you have not read the full explanation of what a CAD/MDT system does, that is the place to start.
GTA V and FiveM
FiveM is where most of this software grew up, and it is the biggest audience by some distance.
Why the CAD lives outside the game
A web based CAD does not care which game you have open. It runs in a browser next to it, which means your records survive a server rebuild, an artifacts update, or a switch of framework.
The audience supports the investment. Grand Theft Auto V passed 215 million units shipped in Take Two's fiscal 2025 results, and FiveM cleared 200,000 concurrent Steam players during 2025. Specifics live in the FiveM CAD/MDT guide.
Roblox Emergency Response Communities
Roblox is the second largest roleplay ecosystem by a wide margin. Roblox averaged 151.5 million daily active users in the third quarter of 2025, and emergency services roleplay is one of its long running genres.
Nothing actually changes
Because the CAD runs in a browser rather than inside the game, a Roblox community uses it exactly the way a FiveM community does. Records, warrants, ranks, priority queues and stale unit flags all behave the same in PlateNet CAD/MDT.
Officers set their own status and claim calls from the queue, which is the same self dispatch pattern FiveM servers already use most nights anyway.
Text and Discord Based Roleplay
Some of the most detailed police roleplay happens with no game client at all. Written scenes, dispatch logs, and long running character histories.
Why records matter more here
With no game world at all, the record is everything. A CAD/MDT gives text communities searchable citizen files, warrant tracking, and an audit trail that keeps continuity honest across months of play. Departments run the same rank structures, and your administrators manage them from the same backend.
Priority queues still matter here too. When six people are writing scenes at once, something has to decide what gets attention first, and a queue does that better than whoever types fastest.
Running One Community Across Two Games
Communities that run more than one game usually get there by accident. A few members start a Roblox division, someone opens a text roleplay channel, and within a year you are maintaining three of everything.
Keep one roster, split the divisions
The mistake is treating each game as its own community with its own account, its own ranks, and its own records. That doubles every administrative job and guarantees the two drift apart within a month.
Multi department and multi platform rosters exist for exactly this. One person, one rank, one set of records, with divisions deciding which call queue they see. Somebody who patrols on one platform and runs medical on the other is one member, not two.
Decide what carries across and what does not
Ranks and records should carry. Callsigns usually should not, since numbering schemes rarely survive contact with a second game, and forcing one scheme onto both platforms produces collisions your officers have to work around every shift.
Charge tables are the interesting case. Most communities want one shared set of charges so a character keeps one continuous history across both games, rather than two versions of the same person.
Platform independence is insurance
A community whose records sit outside every game client is not exposed to any single platform's decisions. That mattered less five years ago than it does now, with the next Grand Theft Auto release still an open question, which is the argument made in full in the guide to planning around GTA 6.
Frequently Asked Questions
Can I use a CAD/MDT for roleplay outside FiveM?
Yes. A web based CAD runs next to whatever you play, so calls, units, records and permissions work the same on any of them.
Is there a CAD/MDT for Roblox roleplay?
Yes. Roblox communities use the same web based systems, in a browser next to the game, exactly as a FiveM community does.
Can one CAD serve multiple games at once?
Yes, if the system supports multiple communities or divisions under one account. That lets you keep a single roster and a single set of records across a FiveM server and a Roblox division.
Do I need different software for fire and EMS?
No. Departments are usually a configuration option, so police, fire, and EMS share the same call queue with different unit types and views. The guide to running fire and medical alongside police covers how to set those up.
Does a CAD/MDT work for Arma or other milsim servers?
Yes. Milsim units mostly use the records and roster side, plus the call queue for taskings.