I honestly don’t know if this has been recommended yet, Or even implemented.
But adding different levels concussive effect to weapon discharges, explosions or shrapnel could add to emersion
To the sandbox.
Concussive effects could be but not limited to some of the following:
• Tinnitus ringing
• Vision tunnelling
• Temporary blindness
• temporary deafness
• Non-existent sounds of audial hallucinations