We haven't changed who can and can't revive. But since you are playing multiplayer, you could just all slot as medic apart from one that plays engineer. Medic and engineer are the only two that have a full function at the moment.

In version 1.9 when someone goes down any of us can revive. From on your back to stand up and fight. In newer versions , 90% of the time when someone is down it says "you can't revive...you need to be a medic" I stand over my friend (which I could have revived if this was an option) watching him bleed out, while the AI medic I brought just stands there looking at my ass.

This used to be a thing i have the two servers up right now and in 1.9 this works and in the newest community ver 2.2 this does not.

I believe the answer to fix this is in this file but I don't know where.
fn_actionRevive.sqf

private ["_cured","_medicX","_healed","_player","_timer","_sideX","_actionX"];

_cured = _this select 0;
_medicX = _this select 1;
_actionX = 0;
_healed = false;
_player = isPlayer _medicX;
_inPlayerGroup = if !(_player) then {if ({isPlayer _x} count (units group _medicX) > 0) then {true} else {false}} else {false};
if (captive _medicX) then
{
[_medicX,false] remoteExec ["setCaptive",0,_medicX];
_medicX setCaptive false;
};
if !(alive _cured) exitWith
{
if (_player) then {["Revive", format ["%1 is already dead",name _cured]] call A3A_fnc_customHint;};
if (_inPlayerGroup) then {_medicX groupChat format ["%1 is already dead",name _cured]};
_healed
};
if !([_medicX] call A3A_fnc_canFight) exitWith {if (_player) then {["Revive", "You are not able to revive anyone"] call A3A_fnc_customHint;};_healed};
if (
(!([_medicX] call A3A_fnc_isMedic && "Medikit" in (items _medicX))) &&
{(!("FirstAidKit" in (items _medicX))) &&
{(!("FirstAidKit" in (items _cured)))}}
) exitWith
{
if (_player) then {["Revive", format ["You or %1 need a First Aid Kit or Medikit to be able to revive",name _cured]] call A3A_fnc_customHint;};
if (_inPlayerGroup) then {_medicX groupChat "I'm out of FA kits and I have no Medikit!"};
_healed
};
if ((not("FirstAidKit" in (items _medicX))) and !(_medicX canAdd "FirstAidKit")) exitWith
{
if (_player) then {["Revive", format ["%1 has a First Aid Kit but you do not have enough space in your inventory to use it",name _cured]] call A3A_fnc_customHint;};
if (_inPlayerGroup) then {_medicX groupChat "I'm out of FA kits!"};
_healed
};
if ((([_cured] call A3A_fnc_fatalWound)) and !([_medicX] call A3A_fnc_isMedic)) exitWith
{
if (_player) then {["Revive", format ["%1 is injured by a fatal wound, only a medic can revive him",name _cured]] call A3A_fnc_customHint;};
if (_inPlayerGroup) then {_medicX groupChat format ["%1 is injured by a fatal wound, only a medic can revive him",name _cured]};
_healed
};
if !(isNull attachedTo _cured) exitWith
{
if (_player) then {["Revive", format ["%1 is being carried or transported and you cannot heal him",name _cured]] call A3A_fnc_customHint;};
if (_inPlayerGroup) then {_medicX groupChat format ["%1 is being carried or transported and I cannot heal him",name _cured]};
_healed
};
if !(_cured getVariable ["incapacitated",false]) exitWith
{
if (_player) then {["Revive", format ["%1 no longer needs your help",name _cured]] call A3A_fnc_customHint;};
if (_inPlayerGroup) then {_medicX groupChat format ["%1 no longer needs my help",name _cured]};
_healed
};
if (surfaceIsWater (position _cured)) exitWith {if (_player) then {["Revive", format ["You cannot heal %1 in the water",name _cured]] call A3A_fnc_customHint;};_healed};
if (_player) then
{
_cured setVariable ["helped",_medicX,true];
};
_medicX setVariable ["helping",true];
if (
(!("FirstAidKit" in (items _medicX))) &&
{!("Medikit" in (items _medicX))}
) then
{
_medicX addItem "FirstAidKit";
_cured removeItem "FirstAidKit";
};
_timer = if ([_cured] call A3A_fnc_fatalWound) then
{
time + 35 + (random 20)
}
else
{
if ((!isMultiplayer and (isPlayer _cured)) or ([_medicX] call A3A_fnc_isMedic)) then
{
time + 10 + (random 5)
}
else
{
time + 15 + (random 10)
};
};


_medicX setVariable ["timeToHeal",_timer];
_medicX playMoveNow selectRandom medicAnims;
_medicX setVariable ["animsDone",false];
_medicX setVariable ["cured",_cured];
_medicX setVariable ["success",false];
_medicX setVariable ["cancelRevive",false];
if (!_player) then
{
{_medicX disableAI _x} forEach ["ANIM","AUTOTARGET","FSM","MOVE","TARGET"];
}
else
{
_actionX = _medicX addAction ["Cancel Revive", {(_this select 1) setVariable ["cancelRevive",true]},nil,6,true,true,"","(_this getVariable [""helping"",false]) and (isPlayer _this)"];
};
_medicX addEventHandler ["AnimDone",
{
private _medicX = _this select 0;
private _cured = _medicX getVariable ["cured",objNull];
if (([_medicX] call A3A_fnc_canFight) and (time <= (_medicX getVariable ["timeToHeal",time])) and !(_medicX getVariable ["cancelRevive",false]) and (alive _cured) and (_cured getVariable ["incapacitated",false]) and (_medicX == vehicle _medicX)) then
{
_medicX playMoveNow selectRandom medicAnims;
}
else
{
_medicX removeEventHandler ["AnimDone",_thisEventHandler];
_medicX setVariable ["animsDone",true];
if (([_medicX] call A3A_fnc_canFight) and !(_medicX getVariable ["cancelRevive",false]) and (_medicX == vehicle _medicX) and (alive _cured)) then
{
if (_cured getVariable ["incapacitated",false]) then
{
_medicX setVariable ["success",true];
//_cured setVariable ["incapacitated",false,true];
//_medicX action ["HealSoldier",_cured];
if ([_medicX] call A3A_fnc_isMedic) then {_cured setDamage 0.25} else {_cured setDamage 0.5};
if(!("Medikit" in (items _medicX))) then
{
_medicX removeItem "FirstAidKit";
};
};
};
};
}];
waitUntil {sleep 0.5; (_medicX getVariable ["animsDone",true])};
_medicX setVariable ["animsDone",nil];
_medicX setVariable ["timeToHeal",nil];
_medicX setVariable ["cured",nil];
_medicX setVariable ["helping",false];
if (!_player) then
{
{_medicX enableAI _x} forEach ["ANIM","AUTOTARGET","FSM","MOVE","TARGET"];
}
else
{
_medicX removeAction _actionX;
_cured setVariable ["helped",objNull,true];
_medicX setVariable ["helping",false];
};
if (_medicX getVariable ["cancelRevive",false]) exitWith
{
if (_player) then
{
["Revive", "Revive cancelled"] call A3A_fnc_customHint;
_medicX setVariable ["cancelRevive",nil];
};
_healed
};
if !(alive _cured) exitWith
{
if (_player) then {["Revive", format ["We lost %1",name _cured]] call A3A_fnc_customHint;};
if (_inPlayerGroup) then {_medicX groupChat format ["We lost %1",name _cured]};
_healed
};
if (!([_medicX] call A3A_fnc_canFight) or (_medicX != vehicle _medicX) or (_medicX distance _cured > 3)) exitWith {if (_player) then {["Revive", "Revive cancelled"] call A3A_fnc_customHint;};_healed};

if (_medicX getVariable ["success",true]) then
{
_sideX = side (group _cured);
if ((_sideX != side (group _medicX)) and ((_sideX == Occupants) or (_sideX == Invaders))) then
{
_cured setVariable ["surrendered",true,true];
sleep 2;
};
_cured setVariable ["incapacitated",false,true];
_healed = true;
}
else
{
if (_player) then {["Revive", "Revive unsuccesful"] call A3A_fnc_customHint;};
if (_inPlayerGroup) then {_medicX groupChat "Revive failed"};
};

_healed