Arma Reforger should add placeable land-mine signs which can help inform teammates that mines are located in the area. They should be made available using a construction truck and cost around 10 supply points per sign.
The model for these signs already exist in-game but are completely static. It would be incredibly helpful if we could place these signs wherever we want.
Currently you can only mark the land-mines on the map and inform your team mates over the radio about an area that is mined, but despite this, there are ALWAYS teammates who don't notice or hear this information and they end up driving over them.
Having the ability to place multiple signs in an area is going to help mitigate the unintentional team killing.