For the research phase, I’ve decided to use a variation of the “research center” house rule, however, if anyone has any good modifications to it…. I’m open.
RESEARCH FACILITIES:
Any nation who is at war, who holds their own capital, and has an eligible territory, may purchase “research facilities” for $15 each during the “purchase new units phase”. During the “place new units phase” new research facilities must be placed on originally owned territories (only one per territory) with an IPC value of 3 or more.
During the “research and development phase”, each operational research facility may roll 1d6 for an opportunity to roll a 6 (only operational research facilities that are on the board during the “research and development phase” may make research rolls). If a facility rolls a 6 during research, they have made a technological breakthrough (regardless of how many facilities roll 6s, a nation may only make 1 breakthrough per round).
During a strategic bombing raid, research facilities follow all the same rules as air and naval bases, including built in AA guns, interceptor protection, and damage. However, research facilities are vulnerable to strategic bombers only.
If a research facility is captured by an enemy nation, the facility must be removed from the board. However, the invading nation may roll one research dice before destroying the facility.