21-22: Rockslides
In narrow valleys, rockslides can create all sorts of problems on the battlefield. Movement is often difficult due to recent slides. Vehicles and men can disappear under tons of rock in the blink of an eye. Furthermore, powerful explosions only help to further agitate the situation!

The areas within 12" of the two short table edges are considered to be difficult terrain. If there was already normal difficult terrain in these "rock slide zones" to begin with, you can now only move a mere 1D6" in these zones. Vehicles and biker units moving through the zones will have to take difficult terrain tests each and every turn! Skimmers (but not Jump Pack troops – they have to land somewhere) are immune to this effect completely.

If an Ordnance weapon is used anywhere on the table, a rock slide will inevitably occur. In a suitable manner, randomly choose a 12" x 12" area along one of the short table edges. This is where the slide occurs. All vehicles in the area are immediately immobilized. Skimmers are destroyed as bounding rocks knock them out of the sky. Anything else in the area sustains an S5 AP6 hit.

23-24: Loose Footing
Expanses of sandy desert, seas of gravel, flaky or brittle rocks, and a strange geologic formation known as "crumble rock" can lead to vehicles getting stuck and troops having to move very, very cautiously.

All movement on the table is considered as if it were on difficult terrain. However, roll 3D6 instead of 2D6 for movement. If there was already normal difficult terrain on the table to begin with, you can now only move a mere 1D6" in these areas. Vehicles and biker units will have to take difficult terrain tests each and every turn! Skimmers (but not Jump Pack troops – they have to land somewhere) are immune to this effect completely.

Also, all Tallarn models may ignore these movement limitations because they like the sand.

25: Sinkholes
Subterranean domes and caverns lie just underfoot across the table. Heavy machinery in the wrong place at the wrong time can cause a collapse, sending the object to an early grave.

Roll 2D6 for every vehicle, bike, walker, and large creature before movement occurs. Skimmers may ignore this roll. Any rolls of 2 or 12 indicate a sinkhole has opened beneath the vehicle. Remove the model from play as it now resides deep underground! Place a suitably sized marker (paper, blast template) where the vehicle last stood. This sinkhole area is now impassable to all but skimmers and jump pack troops.

26: Tremors
Seismic activity can manifest on any planet at any time, though some are more susceptible to such events than others. These tremors can range in intensity and duration. Sometimes it's merely a nuisance; while other times it can be life threatening. A fun way to use these treacherous conditions in the game would be to have the tremors increase in intensity from turn to turn until an all-out Earthquake takes place.

- 1-3: Minor
Due to irregular ground movements, tracking targets is difficult. All firing from troops within vehicles, vehicles themselves, and non-vehicle Heavy Weapons (foot troopers, platforms, and batteries) suffer -1 to hit in addition to any other modifiers present. Skimmers may ignore these penalties.

- 4-5: Major
Heavier tremors continue to disrupt targeting and even begin to affect vehicle movement. All the rules for Minor Tremors apply for Major Tremors along with the following movement penalties. All vehicles and bike squads must roll a 3+ on a D6 in order to move normally. Skimmers may ignore these penalties.

If the roll is failed, the vehicle may not move and counts as having moved less than 6" for purposes of shooting. Vehicles may elect not to move, but must still pass this dice roll in order to fire all its weapons.

- 6: Earthquake!
An all-out earthquake disrupts a battle completely as the ground shudders and heaves underfoot. All shooting suffers -1 to hit in addition to any other modifiers present. Skimmers may ignore these consequences. Major Tremor rules also apply during an Earthquake as well as the Sinkhole rules.

All structures or bunkers on the table will eventually collapse given enough time. Roll a D6 for each building or bunker at the start of a player's turn. On a 6+ the structure is destroyed along with any unfortunate inhabitants.