There's not too much to be said about the interface, controls, graphics or units here; Kane's Wrath operates much the same as C&C 3, and its graphics are equally top notch. The expansion pack does add a few new buildings and units here are there however, including a couple of new sub-factions for GDI, Nod and the Scrin, and a superweapon unit each which are fun to play sparingly in campaign mode, though a little dominant in skirmish mode. The acting cast has admittedly been considerably pared down for Kane's Wrath, but then again, the same has been true of every C&C expansion pack - whilst the main games can and do attract some big name actors, the expansion packs are often left with a skeleton crew. Only Joe Kucan as Kane makes a returning appearance, the only other two roles worth mentioning here and the two new characters of Brother Marcion (Carl Lumbly) and Abbess Alexa Kovacs (Natasha Henstridge).
In campaign mode you play as the Brotherhood of Nod through thirteen missions, a pretty lengthy campaign for an expansion pack, however, Nod's campaign is the only campaign. There is no campaign for GDI or the Scrin, as there was in C&C 3. This is unusual and I can understand why some fans of the series are a little disgruntled about this - given a choice, I'd like to have played a GDI and Scrin campaign here in addition to the excellent Nod campaign, but the Nod campaign is still fun, challenging and retains all the classic C&C elements, so I'm not complaining too much about it. The other downside of only having a Nod campaign is that whilst new units are introduced to all factions, you can only play with the new GDI and Scrin units if you choose their faction in skirmish mode - in the campaign you come up against these units but you never get to play with them.
Kane's Wrath is also unexpectedly not a sequel to the events of C&C 3, as most expansion packs are. Rather, the campaigning spans several eras, with the first act filling in the gaps between the end of Tiberian Sun and C&C 3, the second act providing extra material concurrent with the main game, and the final act set some five years after C&C 3. It fills in a few of the gaps in the C&C saga, but of course leaves the big questions unanswered about who or what Kane is and what his final goal is. However, despite these niggles with the plot, smaller cast and only having a Nod campaign to play with, I still found Kane's Wrath to be an enjoyable game. It kept all the essential, classic C&C elements - plenty of base-building, tiberium harvesting, and armies clashing here, not to mention the mysterious and enigmatic Kane up to his usual unfathomable plotting, and I gleaned many fun hours playing through it.