The most obvious advantage to upgrading a garrison is the increased number of general plots available as garrison level increases. * Level 1: 2 plots (1 large plot + 1 small plot) * Level 2: 4 plots (1 large plot + 1 medium plot + 2 small plots) plus a Mine plot and an Herb Garden plot * Level 3: 7 plots (2 large plots + 2 medium plots + 3 small plots) plus a plot, an plot, a plot, a , and access to a . In addition, the opportunity to have more NPCs, especially in your Town Hall increases with garrison level.