I vote for it.
At this time, the only tactical game about the Spanish Civil War are the games in the "War Storm Series", "A las barricadas!" and "help arrives!" (simply a third edition of "A las Barricadas!").
But this system does not work well, and LnL Tactics feels much better system and more appropriate for this war.
I think that the "Spanish Civil War" can be a great idea and it can have future expansions.
For the core set, you can use for Nationalist: Regular, Legion and Moorish troops. And for republican, Militians and regular forces.
As a possible expansion, you can add the war in the North, with Requetés (nationalist) and Gudaris (republican), with new maps of the north of Spain, more mountainous and leafy.
Also, other expansion with the international forces, italians and international brigades for example.
Regards,
Luis