IMO this is how the typical objective raid plays out vs a privateer raid-
Obj Raid- House Davion sends a company of merc mechs to the planet Grand Base to raid a satellite factory that builds armor and 280 fusion engines for the Cataphract line. The mercs land, push their company out to encounter two lances of House Fujita mechs and two armor lances of EW security. Mercs fight, win they collect up any thing they can salvage from the Fujita mechs or EW armor and then cart off as much of the stockpiled armor & 280 SFE they can fit on their JS, which is not much b/c its a standard Union. If they lose, they retreat off the field with as much as they can- or might ransom their force if they get trapped into a bad position, depending on the era. Either way, House Davion was paying them to fight defenders and take what they could which will harry the CCAF with losses and disruption to their supply lines.
Privateer Raid- Privateers burn in to Grand Base orbit, their pathfinders report that a pair of Fujita lances have been sent to re-inforce the SFE factory (intel said they had a shipment that had not gone out, so they were overstocked) that was going to be the main target. Privateer CO has to decided if it is worth the possible damage to his lance of mechs and company of hovertanks to fight the House warriors & security forces. Dropship comes down on a trajectory for the 280 SFE factory, but at the last minute diverts to another site. The privateers shifted to a factory that produces PPCs for the Cataphract line, though they are not sure how many will be on site- hopefully enough. The security on site is a single wheeled medium armor lance and two platoons of guards equivalent to rifle infantry. The DS lands as close as feasible with the combat team moving out to clear away defenders with the seizure team in their hovertrucks right on their heels. The pathfinders are picked up by VTOL to check out other near by options. Part of the pathfinder team stakes out the largest bank in Mediumville, the town the factory gets its power and workforce from. While the seizure team is loading every single completed PPC on to their hovertrucks along with whatever critical parts are stockpiled (focusing lenses, power converters, etc), they also have a data section make a run at the factory's network computers to pull shipping manifests, current & pending contracts, corporate communication w/CCAF, and any R&D information in the databases. The seizure team then goes on to hit the First Bank of Mediumville to clean out the vault. The seizure team returns to the dropship along with the combat team and any salvage, the dropship lifting off for orbit to decide if there is anywhere else they want to try before any response force could show up.
And some demented gun toter broke open the vending machines at every location to take the Twinkies.
A merc force on a Objective Raid contract has to take a shot at the objective, usually the amount or skill of the defenders is immaterial due to the contract's negotiations. Some mercs operating as privateers can shift their target to find something else profitable without as many dangerous/damaging defenders- for the simple reason the liaison cannot order them to fight and the sponsors will not pay for the repairs.