Missing and no compression in the 5th cylinder. Could this be a burnt valve?

Broken valve spring, burnt valves, piston rings, head gasket, cracked head or block at that cylinder .

Hold a piece of paper to cover exhaust it should move in and out like it does when you hold it against your mouth and breath if it stays out steady you have a burnt valve or just hold foot on the brake and apply a little braking force and press gas like power braking if it stumbles it's probably a burnt valve

When testing the compression did you squirt a little oil in the cylinder? if the compression doesn't change then you have a burnt valve, if it does change you have a broken rings on the piston

You may have a blown head gasket or burnt valve. Run a compression test on all cylinders. If you find one or more that is low then there is your miss.

try a wet/dry compression test. if one or more of the cylinders are low by 30lbs or more and remains so after the wet test, then the valves are likely bent or burnt on that cylinder

Check timing belt,sounds like belt may have skipped.

Poor Injector causing the fuel to spit instead of spray

Burnt Valve on the exhaust or inlet allowing gases to be drawn in and out whe they should not be.

Injectors can be cleaned with an addative to the fuel

Burnt Valves need to be checked with a compression tester

Check compression on engine and if that's good then check injectors(may be bad) . The key to use when checking compression with a compression guage is NOT have your reading be more than psi difference between cylinders. For example is cylinder #1 is 150 psi and cylinder #2 is 172psi then there is a problem like a burnt valve or something . From my experience these types of misses usual come from bad plugs, wires or bad injectors. Good luck and thanks for using FIX YA

try having the fuel filter changed first and have the timing checked and I don't know how many miles on the truck but check low or uneven cylinder compression pressure remove spark plugs and test the compression with a gauge but before doing all this it could be a weak or faulty ignition system

Your next step is to check the compression and fuel. You could have low compression or a bad fuel injector or a Burnt valve