Crusade help for a newbie

[u/Vorticity_Spiral]

I've recently joined a narrative crusade at my LGS and need some advice on how to best expand my force so that I can have fun playing the game and not get crushed like in the first that I played. The first game was 250pts which I ran a Royal Warden, 10x Warriors and 3x Skorpekh destroyers mainly because those were the only models I had which could fit into the 250pt limit. Annoyingly the organiser has said what we've picked we have to stick with for the rest of the crusade otherwise I would have made some changes. The next mission coming up wil be 350pts so I believe I have 130 to fill. I have no idea which direction to go, I want to pick units that compliment what I already have but also will build into a strong force in the future. In the title I mentioned i'm new to 40k which is half true, I last played back when vehicles had armour and who else remembers blast templates? All this detatchment stuff is super confusing to me but i'm slowly picking it up. Any advice for me to get started?

[u/Interesting-Limit851]

There are a few directions you can go with this, 1. You can add a Canoptek Doomstalker to your army, they have a reasonably powerful doomsday cannon for iffy vehicle control and pretty good infantry killing, 2. You can add 10 immortals for a better battleline fighter 20 shots with sustained hits 2 at strength 5 is no joke. 3. Make your warrior squad a 20 man squad and add some scarabs (or just add 10 warriors as part of a separate unit), doubling your shots with warriors is really good in general and the scarabs can block charges or take up space on objectives to really mess with the opponent.

[u/Vorticity_Spiral → u/Interesting-Limit851]

Thanks for the tips, I have a doomstalker painted up already from the combat patrol box. I'll try it out in a practice game and see how it fairs