Ailaros wrote:For outflanking madness, I agree that, on that metric alone, the scout sentinels are probably better than the vendetta, but that's in an outflanking role, which has nothing to do with searchlights.
As for sentinels v. chimera. Let's take the multilaser sentinel you were talking about, and compare it to a vehicle that also has a multilaser.
... and a heavy bolter, and can take a heavy stubber, and is AV12, and has +1HP, and can keep an infantry squad safer, while still allowing it to fire at basically full firepower, and can get scoring units onto objectives faster, and can tank shock/ram, and it gets overwatch (well, the guys inside do when the vehicle is attacked), and it even ignores water-based terrain to boot. And it has a searchlight for free.
People are suggesting chimeras because they're way, way better, especially for what you're looking for right now. If you specifically want scout sentinels for something (to add some more punch to a large outflanking contingent, for example) then take scout sentinels. If you want a searchlight, seriously, take chimeras.