squad based tactics is neatly defined.
and not as RPG
let's postulate the following:
1) RPG's evolved from strategy games which played out on a larger scale.
2) RPG's started as a hybrid between squad based tactics and theatrical roleplaying
3) There are therefore at least two types of games that can claim to be (C)RPG's
I'd prefer to call the ones that have more emphasis on world building as the "true RPG's" because they offer something that is rarely achieved in other games, the simulation of a different world - note that according to this definition GTA might not count with its real world places (but also due to a questionable bias of ego stroking vs. verisimilitude). Tactical games can come almost entirely without the world building, much less the effort of creating a fictional world. The difference between a grand wargame and a squad tactics game is also more of a question of scale, while the difference between a wargame and a theatre piece is huge.