To use the artillery or air drop assets, a squad leader must request them.

如果要使用火炮或者空投，需要小队长申请。

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Armagh forward Ronan Clarke and Cavan's Nicholas Walsh are among five players named in a stand-by panel should any of the squad drop out.

BBC: Ulster quartet in Rules squad

Dan Biggar, Martin Roberts, Morgan Stoddart and Eifion Roberts drop out of the squad from the autumn Test series.

BBC: Wales omit Peel for Six Nations

In Murray's absence, Britain slumped to a 4-1 defeat by Ukraine in Glasgow but the Scot has backed captain John Lloyd's decisions to instigate a play-off to choose his squad, and to drop his brother Jamie from the doubles.

BBC: Murray returns with doubles win