I thought you might be interested in looking at BTK Gasmask for ACE (Simulate conterminated areas).
https://forums.bohemia.net/forums/topic/108651-btk-gasmask-for-ace-simulate-conterminated-areas/?do=findComment&comment=1804958
× Pasted as rich text. Restore formatting
Only 75 emoji are allowed.
× Your link has been automatically embedded. Display as a link instead
× Your previous content has been restored. Clear editor
× You cannot paste images directly. Upload or insert images from URL.