-2.00 for access to 1.0 security level systems -2.50 for access to 0.9 security level systems -3.00 for access to 0.8 security level systems -3.50 for access to 0.7 security level systems -4.00 for access to 0.6 security level systems -4.50 for access to 0.5 security level systems -5.0 or less can be attacked by anyone without sentry gun intervention