Mission Briefing
Attention - New Information Has Come To Light
Enemy agents have dismantled some equipment in order to hamper our efforts to locate the secret drop point. We can now reveal that A = 6 and D = 7 (enemy agents have changed some equipment to ruin our plans). This new information should help you bridge the gap.
Please remember that urban satellites aren't always as accurate as they could otherwise be. The drop site is not in the middle of some buildings, despite what your calculation might tell you (although you might be within 40 metres or so). But it is protected from spying satellite eyes.