Unit would be high mobility with an emphasis on long range engagement, sensors and reconnaissance. Build around a high mobility decently armored platform like the T-15 or Patria AMV and equip them with autocannon, ATGM, and the best sensor suite available. Equip troops with fairly standard weaponry; make long range engagement a priority, but make accomadations for more close encounters. So M16A4 with optic for most soldiers, decent number of DMR and sniper rifles, maybe in a 6.5 or .338 caliber. Light machine guns on the squad level, something like the Minimi, a dedicated MG squad for each platoon equipped with either a PKM, a FN MAG, or a MG 3. SMGs available for units on as-needed basis; probably MPX in .357 sig with a handgun to match. Carl Gustaf recoilless guns, RPO Shmel thermobaric launchers, and Bur launchers issued as needed for area devastation or hardened targets.
Tank assets would be of limited value, but artillery would be highly valuable. Msta self propelled howitzers, Tochka tactical missiles, and a good variety of heavy mortars.
Take apart some helicopters and wheel them inside the portal then reassemble them.
Spearhead a first attack with armor and heavily equipped infantry to establish a bridgehead on the other side. Shoot anything that moves and completely incinerate five or more square miles around the area. Use this as a base from which to direct aerial resupplies.
Use aerial recon assets to determine the location of the personnel and set out in that direction, annihilating anything alive in the path, preferably from afar by means of artillery. Sorcerers can't use magical cheats if they can't fucking see you. Escort helicopters may be necessary to keep the ammo flowing if angry magic things start attacking the airborne choppers along the resupply route. Take no prisoners and help the supply unit along by pillaging for sustenance.
Once the location of the hostages is reached, assuming it is a large settlement or fortress, lay siege to it and begin bombardment of anything that has arrows coming from it. Attempt to force a surrender, threatening the same annihilation of those that came before. Otherwise, breach the walls whenever the enemy seems sufficiently worn down and move in with explosives and flame weapons. A strong caution shouPost too long. Click here to view the full text.