Add a sub-rule to missions called “The Ranks of a Spy”

There exists a column on the GNDT called “Rank”. All Agents start with rank “Beginner Spy”
Once an Agent has completed three or more missions, eir rank becomes of “Standard Spy” and may increase the number in eir gadgets column by one.  (each agent may only do this once)
Once an Agent has completed seven or more missions, eir rank becomes of “Experienced Spy” and may ignore the final sentence of rule 2.6.
Once an Agent has completed ten or more missions, eir rank becomes “Master Spy” and has achieved victory.