Health: 700 (only by airboat cannon or RPG). Yellow means that the hopper is lose on the ground, blue means it has been uprooted, green means no hostile in area.Д¬ombine Vehicles Combine APC File:HL2lanucher.jpg Some Hopper mines start inactive and can be planted by the player, such as in Episode Two, there are no hostile Hopper mines only inactive ones in Griggs and Shecklys Outpost or the outpost in the middle on Level 2 of 'This Vortal Coil.' The lights on the mines depend on what it is detecting. Hopper mines can be вЂњreprogrammedвЂќ to detonate only when triggered by an enemy, rendering them safe for the player and their allies. The only way to destroy them is to force a detonation after the mine has become active, either via player or npc proximity depending on the current вЂњprogrammingвЂќ of the mine.

Hopper Mines are pre-planted or initially inactive mines that hop and blow up if an enemy is within proximity. Health: N/A (only destroyed picked up and thrown to the wall or enemy detected). Half-Life 2 Episode One Chapters: 3, 4, 5.

In Half-Life 2: Episode One, you can reprogram rollermines into an ally for a short time with the help of Alyx - however, this makes the rollermines unstable, and they begin to pulse red after a short period, followed by the mine exploding.

They can also be deactivated - the NPC Dog is shown using a deactivated rollermine as a ball. They are immune to normal gunfire and can only by killed by explosives or the aforementioned water. Combine Rollermines can be destroyed if dropped in water. They roll up to the victim and zap them with electricity. Rollermines are balls that activate if an enemy is nearby. Health: N/A (only destroyed by water or explosive). Half-Life 2 Episode One Chapters: 1, 2, 4. A Manhack can also be deployed by Combine Metro Cops. In early drafts of the game, they were going to be featured as a weapon. It is further possible to fire one at a wall instead - this causes it to explode upon impact. It is possible to capture one with the gravity gun, and use it as a weapon by firing it at an opponent, although it will then return to attempting to attack you. Manhacks, called 'hacks' for short, are small flying machines featuring a rotary saw, which they use to attack resistance members. Their current status is shown by a light on the camera, with green being normal, blinking yellow for enemy detected, yellow for error and red for reinforcements called. The Combine Ceiling Camera acts like a stationary city scanner. They carry a light machine gun which doesn't work if the difficulty mode is easy. They can also be called 'Scanner Type 2'. The Combine Shield Scanner looks like the city scanner except they carry Hopper Mines with their claw. Half-Life 2 Episode Two Chapters: Not Seen. Scanners can also harm you by diving into you, and alert Combine reinforcements. They are best destroyed by gravity guns or with the crowbar. They also can be called 'Cscanner' or 'Scanner Type 1.' Scanners flash at the player and create a flashbang grenade type effect. The Combine City Scanner is a flying camera that hovers around cities and Main Combine Buildings. Half-Life 2 Episode One Chapters: 1, 4, 5. Combine Flying Machines and Mines City Scanner File:HL2cscanner.jpg

Half life 2 combine combat