Ammo is better then Grenades too, because Ammo never runs out while Grenades have one use, maybe two. For last mission, focus on things that keep giving: Psi-Ops only have cooldowns. Specialists are usually pretty bad, but Haywire is reusable. Swords are forever. Sharpshooters (both types) only need reload and cooldown. My final team (as best I can remember): Heavy Gunner, Sniper, Gunslinger (she had Salvo, so she got the War Suit), Psi-Ops, Blademaster Ranger, and a Combat Hacker for Haywire (Ironically Capacitor Discharge was more useful).
You know, you learn a lot of cool stuff going through the ins and Localization. Lots of things have descriptions that aren't even visible in the game as far as I can tell: For example, while most the cities don't have descriptions, some do: Chicago was apparently one of the places where American Military defended most heavily, London was decimated by heavy fighting early on, the Russian last stand at Moscow merely delayed the inevitable. Shanghai was hit by the "inital salvo", and as one of the densest places in the world, it became an absolute nightmare. Lagos avoided the initial invasion but descended into chaos. Sao Paolo couldn't be evacuated due to the high sprawl and the chaos of the intial attacks. Despite efforts to avoid involving Berlin, the aliens nonetheless took down Berlin. And finally, Paris was left almost completely uninhabited at War's end, wiped off the map as it were.
On the other hand, almost enemy weapon in the game has a small description saying something like "XCOM salvages a bunch of stuff, and their weaponry is generally inferior to ADVENT, barring certain unique upgrades". There is one exception:one enemy item has a unique description.[PsiZombie_MeleeAttack X2WeaponTemplate]
FriendlyName="Zombie Claw"
FriendlyNamePlural="Zombie Claws"
BriefSummary="CLAW THE ENEMY! SEIZE THEIR DELICIOUS BRAINS."
TacticalText="Zombie Claw"