Years ago I played the first edition of Firefight a few times. I don't know if the game has changed much since then.
I don't know anything about MOTH.
I enjoyed Firefight despite some minor concerns about balance.
Combat was fun. Initiative was individual. You pick a model, roll a pool of dice to generate hits or dodges, results of neither could be used to move. To attack you would assign a hit to an enemy model, who would then roll his dice in an effort to dodge that attack and make his own, until all are done. Cover would allow you to reroll dice in hopes of generating dodges. It was fun and dynamic, although I'm not sure if the odds worked out right for some of the option. We did not analyse it too deeply or play too competitively so any potential imbalances never spoiled the fun.
Now, this was maybe 15 years or so ago, so my memory is hazy.
But now that you have mentioned it again, I'm tempted to pick up a copy and play again.
It was fun.
