France
Now France has some variations between uniforms.
The "light/off-duty" uniforms are mostly the same within all regions.
However, the "heavy/full-intervention" suits differ between the regions.
Some are fully orange (like Paris), others are more brown and others are black/navy blue. Even between these different colors, there are variations. For example: the way the reflective stripes are arranged.
However I think that as of now and in the near future, the black/ navy blue uniform is the most common version.
Below I will give a few examples of what I think is a good general solution for entire France and one for the Paris Region
Also in France, the fire brigades handles fires, as well as Ambulance services. So I will also give the uniforms for the Paramedics (of the Fire Brigade)
Firefighters uniform for Entire France
When intervening within Traffic, they must wear a high-vis vest when wearing the black/navy uniform (as that version isn't deemed visible enough on it's own)
Firefighters intervening in Traffic
High-vis vest Front
High-vis vest Back
This is the "heavy/full-intervention" uniform, that I think is a good representation of what the average French "heavy/full-intervention" uniform looks like. The only thing you have to do, is to remove the word "Nord" from the back of the coat (when implementing in game). The uniform belongs to the fire department of the city of "Roubaix"
Front and side (note the small rank patch on the stumach)
Rank patch
Back and side
Back
Back in closer detail
The helmet that is used by this fire department is the "Gallet/MSA F1" in the color shiny chrome. This is also the most common type of helmet and color within French fire brigades
How it normally looks
With the heatshield deployed to protect against flames (can't be used when wearing a respirator)
The "light/off-duty" uniforms are used whenever at the fire stations or when performing lighter, less dangerous activities.
Front
Back
Side
All sides
Paramedics uniform for Entire France
The paramedics use the "light/off-duty" uniforms mentioned before, but when working in traffic, they got their own high-vis vest:
Front of the vest
Back of the vest
Firefighters uniform for Paris
The "heavy/full-intervention" uniform is fully Orange for Paris. Since it is already so bright, they don't need to wear a high-vis vest when working in traffic
Front (dont worry that it is in a museum, it is still new and used today

)
Back
For the:
- "light/off-duty" uniforms (also used by paramedics)
- high-vis vests used by paramedics
the same models can be used, as the ones used for "entire France" since they are pretty much similar