Survival mode: Sent my two 2-man squads to a central point, that main road going from south-east to north-east (Leiceister), and took control of the 1 man squad myself. After just a minute and 30 seconds, my 2 squads were dead, and I only had my single man. 10 minutes, 400 zombies. One of them finally came through the window and trapped me against a hedge. D: