If you use Exad Statbar i have a solution for you....
In (mpmissions\Exile.Altis\ExAdClient\statsbar) find postinit.sqf and add this line at the bottom true call ExileClient_gui_hud_toggle;
should look like this
[] spawn {
waituntil { !isnil "bis_fnc_init" && !isNull findDisplay 46 && alive player && !isNil "ExileClientLoadedIn" };
waitUntil { ExileClientLoadedIn };
call ExAd_fnc_loadSB;
true call ExileClient_gui_hud_toggle; // <<<<<Added Line for showing HUD
if(!ExAd_SB_EXILE_HUD_ACTIVE)then{
call ExAd_fnc_toggleExileHUD;
};
};