I propose tweaking attack settings to fit certain bonuses. When all of the bonuses on wepons were introduced a few years ago, the attack settings were not updated to fit some of those bonuses.
I will use the Assassinate bonus as an example. It is important that it hits on the very first turn in a defend because that's the only way the bonus would be effective. However, this greatly conflicts with temp usage. You want your temp to be used on the very first turn. Throwing a smoke (or your temp of choice) is essential. But if you are absolutely committed to having your assassinate weapon being used first before your temp, in your attack settings you could set your weapon that has the Assassinate bonus to 100 to make sure it procs on the very first turn. However, if it is set to 100 then that means it will be used constantly throughout the defend even after the bonus procs, and that's not ideal. Some might say, "Well, why don't you just turn reloads off?" But that's not possible if you have a meele like an assassinate Macana or an assassinate DBK.
Maybe the attack settings could be tweaked just a bit and there could be an option added that would state, "Use on first turn only". This would be good for some other bonuses also, not just Assassinate.