(best quality,4k,8k,highres,masterpiece:1.2),ultra-detailed,

(best quality,4k,8k,highres,masterpiece:1.2),ultra-detailed,(realistic,photorealistic,photo-realistic:1.37),tense atmosphere,defensive battle,classroom,soldiers,firefight,red lighting,determined soldiers,weaponry,chaotic scene,bravery,protection,combat strategies,students hiding,exploding debris,bullet shells,smoke-filled air,alarming sirens,camouflage uniforms,intense focus,sharp shooting,tactical movements,sweat-drenched faces,clenched fists,unyielding determination,emergency exits,barricades,splintered desks,gunfire echoes,frantic communication,strict discipline,trained soldiers,emergency response,crimson-red hue,stifled breaths, rush,military precision,unrelenting assault,warzone ambiance,constant gunfire,swift reflexes,unshakable loyalty,controlled chaos,coordinated defense,unwavering resolve,teamwork at its finest,heroic sacrifices.