IW are the "shooty" ones on the CSM team these days. Other Legions may have some benefits to shooting as well, but I think we do it the best overall. Disclaimer: I haven't poured through all the new Faith and Fury stuff in detail other than our IW stuff.
The Ignores Cover ability I think has only become more and more useful as time has gone on. It is not the most obvious one, but especially with world-burner forces like Raven Guard right now, it really makes up some ground. I also find it absolutely punishing against light units: Scouts, Guardsmen, Cultists, etc.... I feel like I'm effortlessly swatting away flies as I clear the way to target heavier enemies. Even using a "bad" unit like Chaos Space Marines squads I feel like I've decimated enemy light infantry with "free" bolter pop shots at targets of opportunity: maybe it's because BA are my main force, but I often "John Woo" and shoot enemy A while charging enemy B so as not to reduce my charge range. Maybe I have just been very lucky, but I feel like my CSM have done some serious work that way.
I will reiterate what @MegaVolt87
said, with emphasis on Obliterators, Cultists, and Havocs. I think we have some pretty darn good WLT’s and Strats overall.
Where I think some of IW’a current hidden benefit comes from is the ability to do multiples of the same thing. Like FNP
: you can have 5+ on your WL, while still casting Delightful Agonies on unit B, and then still pop IWIW on unit C. Likewise, you could run Bastion on your WL to reduce enemy AP on nearby units, then either double-dip with Dour Duty or throw DD on a different unit to spread the love. Spamming Cultists? You can either take the classic Cold and Bitter WLT or run Cult of the Damned.
We have a lot of synergy and options, and I am still wading my way grouch it all, finding synergies I like. Heck, even Spitespitter as a Relic is amazing anti-Primaris tool.
I think we're solidly mid-tier with the ability to do deceptively well in the right hands, but we outright are not going to win simply by showing up.
TBH--somewhat ironically--the hardest enemy I've ever faced as IW is Deathwatch. Their 3++ shields buried everywhere was tough to overcome and my opponent's ability to focus fire down different FOCS really made a dent. He was able to calmly walk up the board shooting me to shreds while also easily repelling my melee forces. Honestly, the biggest saving grace for me in that matchup was his low model and unit count...it was hard to kill a unit but every one I did really hurt his maneuverability and the net eventually closed, though if the game had gone on longer he might have been able to win through attrition. It will be interesting to see what Deathwatch gets in the Psychic Awakening saga.
Edited by Indefragable, 03 February 2020 - 08:00 PM.