MGS Delta collab soon with Infiltration mission type:
>Map-wide fortress/Mega Nest biome
>Alert level mechanic:
>>Caution: enemy aware of your presence (caused by explosions and gunfire, easier to be spot, condition lasts a long while)
>>Alert: enemy engaging you (get spotted, patrols automatically alerted to area of combat)
>>Evasion: enemy searching for you (patrol spawn rate increased, easier to be spotted, eventually downgrades to caution, can get in groups if another teammate triggers an alert)
>drop in point is limited to evac pad (never has enemies) located outside Megacity
>reinforcements automatically called in but you are sent back to evac
>orbitals and eagles restricted to evac
>support weapons and turrets have -80% CD at evac only
>experience bonus the longer you stay out of alert