The setting is escalating 6+ player games. By '2s tactic', I mean leaving 2-man garrisons on most of your territories while concentrating the remainder on key positions. By the 'Concentration tactic', I mean leaving only 1-man garrisons (or perhaps very few 2-man garrisons) while concentrating your forces on key positions.
In other words, the trade-off is between 2-man terries and concentrated key positions. (How do you generally allocate your troops?)
The 2s tactic opts for more 2-man territories but consequently lowerconcentration of key positions; whereas, the Concentration tactic opts mostly toward less 2-man terries but a higher concentration of key positions.
(1) Which is the superior tactic in general?
[(a) dropping 2s everywhere, or (b) not doing that]