Spawn in another Group once all Dead ?

[1para{god-father} 105]

I am spawning in a group , but how can I spawn in another group once this one is all dead , and keep going untill a condition is meet ?

_grpINF = [_position, EAST, ["TK_INS_Bonesetter_EP1", "TK_INS_Soldier_2_EP1", "TK_INS_Bonesetter_EP1", "TK_INS_Soldier_2_EP1", "TK_INS_Soldier_4_EP1", "TK_INS_Soldier_AT_EP1"],[],[],[],[],[],180] call BIS_fnc_spawnGroup;

[cuel 25]

Counting the alive state of the units in the group might be a good idea.

Something like this?

SPAWNING_GROUPS = true;

while {SPAWNING_GROUPS} do 
{
_grpINF = [_position, EAST, ["TK_INS_Bonesetter_EP1", "TK_INS_Soldier_2_EP1", "TK_INS_Bonesetter_EP1", "TK_INS_Soldier_2_EP1", "TK_INS_Soldier_4_EP1", "TK_INS_Soldier_AT_EP1"],[],[],[],[],[],180] call BIS_fnc_spawnGroup;
waitUntil {sleep 5; ({alive _x} count units _grpINF) == 0};
};