I thought you might be interested in looking at Setting Arma 2 resolution higher than monitor rez gives extra detail.
https://forums.bohemia.net/forums/topic/123584-setting-arma-2-resolution-higher-than-monitor-rez-gives-extra-detail/
× 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.