This is based on the assumption that if one nation gets an arms breakthrough, the odds are that it will be easier for other nations will get it too, by copying it. Â
We have done this before - at the start of the game pass out a “copy” card to each player.
Say your opponent gets something really good like heavy bombers, or the Atomic Bomb or some house rule thing that could wreck you. Roll for an arms breakthrough as normal. If you get a six, instead of rolling for which random breakthrough you get, you now have the option of playing your “copy” card and copying something that is already on the board.
This helps keep the game competitive and less luck driven. It also adds a bit of strategy. Do you want to use your card to copy those super subs now or hold onto it in case someone gets long range aircraft? Decisions, decisions…
For long lists of custom Arms Breakthroughs, pass out two cards each. Â Â