Info Plugin:

This plugin implements the ability for SCP-049-2 instances to collectively destroy doors.

When a sufficient number of SCP-049-2 are near a door that requires a keycard it will be broken down in a style similar to SCP-096. 
The interaction of a single SCP-049-2 is enough as the plugin calculates how many SCP-049-2 are close to the interacted door. 
If there aren’t enough SCP-049-2 to destroy the door a ShowHint will appear indicating the need for more SCP-049-2.

However gates will not be destroyed but rather opened and locked for a certain number of seconds. 
After the lock expires they can be used again.

Regular doors will not be considered as destructible doors (to avoid retiring SCP-079).

A final warning: this plugin grants the ability to all SCP-049-2 instances in the game. 
Therefore if you have any CustomRoles that use SCP-049-2 as a role please take this into consideration.

Config:

scp0492_door_destroyer:
is_enabled: true
debug: false
# Quantity of SCP-049-2 needed to destroy a door
zombies_needed: 5
# The maximum distance within which an SCP-049-2 player is considered for destroying the door
max_distance: 5
# Duration of time the Gate must remain locked after being broken by SCP-049-2
gate_lock_duration: 60
# The message shown when the SCP-049-2 player is too far from the door
too_far_away_hint: ‘You are too far from the door. Get closer by {0} meters.’ //With a range of 5 meters, this ShowHint should never appear, but for added safety, I decided to include it in case you reduce the range.
# The message shown when there are not enough SCP-049-2 near the door
need_more_zombies_hint: ‘You need another {0} Scp049-2 to open this door.’
# Duration of the ShowHint
show_hint_duration: 3