JTAC, Lazes, Flares and good old bickering.

Fire support, on paper, all it takes is one special flare lobbed in the right direction, then waiting for the fireworks.
In practice however, getting fire support can be a tad more tricky, especially if you`re more or less stuck right between the xenos and the gung ho marines you call comrades.
In order to actually get fire support, one may need to speak softly, mark carefully and carry a very big stick to fend off xenos while waiting for the support to arrive, as their response time greatly varies.

PO`s, gunships and big bloody rockets.

Ah yes, CAS, loved by all as they can turn even the biggest xeno into a fine paste, firing huge specialized rockets or launching extensive GAU gun runs across the battlefield.
Question is, how do you attract the attention of the elusive PO`s and their equally mystical guns?
Simple, acquire a JTAC radio key (From the JTAC kit handed out by Requisitions), listen for when the PO announce "CAS is up", then simply get their attention with a quick "Need X" with X being either GAU strafes, rocketruns or both combined, for enchanced usage, tell them which direction they should fire at, such as North, East, South or West.
PO`s tend to react very quickly if you follow these steps, as they usually rarely get much action AND have a near limitless supply of munitions.
While strafing runs are simple and fast, another, more devastating attack is by firing huge rockets, typically loaded with napalm in copious amounts.
Unlike strafing runs, rockets can only be fired STRAIGHT on the laze, which means you`ll have to aim directly at any large xeno crowd for them to work properly, however, if they get a hit, very few things are still alive afterwards.
This also means you, so remember to stay a safe distance from the target areas.

OB`s and you.

If you`ve been around for a few rounds, chances are you`ve either seen, heard or FELT an OB.
Thing is, what is an OB, where is it from and WHY ME HURT SO BAD?
Well, let`s start with the basics, OB means Orbital Bombardment, essentially a big massive metal shot, sometimes loaded with napalm, is fired from orbit at a marked target, the velocity causing a massive explosion on impact.
Problem is, OBs are loud and rarely, if ever, hit anything.
Like Stuka`s of World War 2, their biggest effect is from the noise they make.
As such, OBs are perfect for scaring off enemies, rather than killing them, which can help immensely in breaking stalemates, sieges or assaults.
Unlike CAS, OBs require coordinates, coordinates can be acquired by getting a range finder and aiming it the same way as if doing a standard CAS laze.
Alternatively, the standard issue JTAC Tactical Binoculars can be calibrated for coordinates instead of lazing by right-clicking and pressing "Toggle Mode".
All in all, OB`s are for when shit hit`s the fan.

Mortars, or metal tube of somewhat scary death

Mortars, rarely ever seen, heard or felt, for good reasons too.
Mortars lack the huge amounts of free ammo CAS gets, the scary noise the OB creates and the versatility of both.
There is also only ONE mortar available, meaning fire support from one is limited to one shot at a time.
However, unlike OB`s, mortars are relatively cheap compared to an OB, makes little noise and have access to several different ammo types of varying utility.
Where the mortar really shines, is on open ground, especially during sieges, able to quickly rain death down on predetermined coordinates with relative ease, as long as the target is not under a roof, off course.
Problem is, mortar`s need constant babysitting in order to react fast enough, manning one is boring and every shot still costs Requisitions a fair bit of points.
However, the various shell types can immensely help the fight, be it illuminating the fields with flares, burning threats with WP shells or just blowing everything to bits with HE, mortars are still a threat.
Like with OBs, they need coordinates to fire, unlike OBs, mortars never hit their exact coordinates, instead missing by a few tiles, this is rarely an issue, but still, do give targeted areas a wide berth.


And that about wraps it up, not much to say, horribly formatted and with as much brain dead knowledge as possible, hope it helps, but please, read an actual CAS guide first.