Waco Siege(Wiki)

• Raid (February 28): 75 federal agents (ATF and FBI); 3 Sikorsky UH-60 Black Hawk helicopters crewed by 10 Texas National Guard counter-drug personnel as distraction during the raid and filming.^[112][113] Ballistic protection equipment, fire retardant clothing, regular flashlights, regular cameras (i.e., flash photography), pump-action shotguns and flashbang grenades,^[114] 9 mm handguns, 9 mm MP5 submachine guns, 5.56 NATO M16 rifles, a .308 bolt-action sniper rifle.^[115]
• Siege (March 1 through April 18): Hundreds of federal agents; 2 Bell UH-1 Iroquois helicopters.^[116]
• Assault (April 19): Hundreds of federal agents; military vehicles (with their normal weapon systems removed): 9–10 M3 Bradley infantry fighting vehicles, 4–5 M728 Combat Engineering Vehicles (CEVs) armed with CS gas, 2 M1A1 Abrams main battle tanks, 1 M88 tank retriever.^[113][116]
• Support:^[113] 1 Britten-Norman Defender surveillance aircraft;^[117] a number of Texas National Guard personnel for maintenance of military vehicles and training on the use of the vehicles and their support vehicles (Humvees and flatbed trucks); surveillance from Texas National Guard counter-drug UC-26 surveillance aircraft and from Alabama National Guard; 3 soldiers from Delta Force, to serve as observers (also present during assault);^[118] 2 senior U.S. Army officers as advisers, 2 members of the British Army's 22nd Special Air Service (SAS) Regiment as observers;^[119] 50+ men in total.^[120]

^{https://en.wikipedia.org/wiki/Waco_siege}