function GM:ShouldCollide(ent1, ent2)
    if (IsValid(ent1) and IsValid(ent2) and ent1:IsPlayer() and ent2:IsPlayer()) then
        if (ent1:Team() == TEAM_INFECTED and ent2:Team() == TEAM_SWAT) then
            --ent2:SetTeam(TEAM_INFECTED);
            --player_manager.SetPlayerClass(ent2, "class_infected");
            ent1:Kill();
            ent2:Kill();
            return false
        end
        return true
    end
    return true
end