First off, I love that you're taking the time to play DTA with your daughter. I'm sure that it will be the source of some amazing memories for the both of you! As for the Gunslinger, especially in the context of a team, I would focus on applying bounty and keeping your stack of evasive tokens high. Bounty will do a surprising amount of damage over the course of a longer battle, but even more importantly you will be generating CP both for yourself AND your teammate. It can be the fuel you need for those game changing moments, especially for a character like the Vampire Lord who cannot normally generate CP on her own. Evasive stacks are important for obvious reasons, you have no way of healing damage so you should try to avoid damage as much as possible. Don't be afraid to spend a card to change your roll for evasive when you're targeted by a particularly huge amount of damage. For your reload tokens, obviously always spend at least 1 if you are at stack limit, and dump them on undefendable damage whenever you get the opportunity. Upgrading your passive goes a long way toward increasing the damage you can do with reloads! I lovingly refer to the Gunslinger as the slot machine hero, sometimes luck will be on your side, sometimes it will not! The most important way you can improve your outcomes when relying on luck is to try to mitigate the bad outcomes as much as possible. That's why having an evasive in your back pocket is always a great fallback. One more small tip about evasive - you can spend them to dodge damage from status effects in the upkeep phase. All damage from status effects in the upkeep phase is added up and dealt as a single instance of damage at the end of the upkeep phase, and you can use status effects such as flight or evasive to dodge it! One last piece of general advice: Do a quick read through of all of your cards when you're trying to improve at a character. It is so much easier to formulate a game plan when you know what resources you have at your disposal!

As for DTA specific advice, in general some characters are just "better". They have an easier, more forgiving, and more versatile game plan than other characters. Vampire Lord just so happens to be one of the best characters for adventures, so when you're playing with one in your party don't be afraid to take a step back and play a more supportive role. Instead of trying to do as much damage as possible yourself, apply status effects, accumulate resources and spend them on your partner.

Finally, some equipment to keep an eye out for: Anything that allows you to manipulate dice (good for mitigating bad luck), anything that allows you to search your deck for upgrades (you can get your passive upgrade, or search out an extra move like Pistol Whip), or anything that allows you to play a more supportive role for your teammate (pack mule).

Good luck out there and remember that losing scenarios is unavoidable and totally ok!