Playing time with the expansion
The expansion scenarios are shorter (and easier for the marines) than those that come with the base game. Playing time is something like 2 hours 15 min instead of 3 hours. Of course the total playing time depends on the players and their playing style.
New rules - which are already present in FAQ for the base game - don't really affect directly to playing time. (Except for Deathmatch and Capture the Flag rules, which are very different.)
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