Guild Wars 2

I think for a hybrid build pistol/shield is better?
Grenades for the range?

welp, in 1v1 p/s performs nicely and offers awesome controll, but in 1vx I preffer toolkit and rifle + nades.
seems illogical at first since rifle #4 is only single target instead of shield #4, but overall I prefer the mobility on it and the ability to kick corpses if their rezzer happens to have stability. and the 3sec block on TK is a real life-saver if they unload their ranged pressure or run stability.

http://metabattle.com/wiki/Build:Engineer_-_Celestial_Rifle

This is a hybrid build with grenades for PvP, but with rifle and not pistol/shield.

Grenades win for hybrid damage builds, hands down. Rifle does as well, though more so in PvP than PvE, due to its burst and both soft and hard CCs helping to land grenades and other skills.

For PvP you’ll want: Celestial, Strength or Hoelbrak runes, traits 6/0/0/x/x, with Grenadier, Incendiary Powder, Speedy Kits, and Invigorating Speed being must-haves (mostly). Other traits you may want to use: Shrapnel or Accelerent-Packed Turrets in Explosives, Backpack Regenerator and Protection Injection in Alchemy, Power Wrench or Leg Mods or Speedy Gadgets (if taking Slick Shoes) in Tools. Healing skill is Healing Turret (always), utilities are Grenade Kit, Tool Kit, and one of your choice, likely one of the following: Elixir S, Elixir Gun, Slick Shoes, Rocket Boots, Bomb Kit, Flamethrower, Elixir R. Battle Sigil is a must have, other sigil choices include Geomancy, Intelligence, Energy, Doom, and Generosity.

For PvE: Sinister armour/trinkets with runes of the Aristocracy or Strength (expensive), Giver’s Rifle (P/S for some scenarios, consider energy sigil for these) with Strength/Battle, can replace one sigil with appropriate Slaying sigil if you find yourself capping might too often, traits 6/6/0/2/0, Grenadier, Short Fuse, Shrapnel, Arms traits flexible depending on utility choices, Blood Injection of Invigorating Speed (pair with Infused Precision in arms) for extra dodges. Healing skill Healing Turret (can swap to med kit pre or post combat for swiftness/fury), utilities Grenade Kit (must), and two of the following: Flamethrower, Bomb Kit, Elixir Gun, Tool Kit. Swap as necessary, and don’t forget about Toss Elixir S for stealth and Toss Elixir U for projectile destruction. Note that effectiveness decreases when other players applying bleeds/burns are around.