Give all the movement on IG lists I thought id throw something else into the mix that Ive been pondering for a while; namely a rough rider/light cavalry force. Im thinking something akin to Australian light horse or Attilans deployed en-mass (if such a thing were ever likey to happen). The basic premis is akin to mountain troops- they use nothing that cannot travel fast and light over very rough terrain.
So far I have got to something like:
Companies
-Hussars (12 Hussars) *need better name*
-Light Infantry (IG command plus 12 light inf)
-Regt HQ (12 Light Inf plus Regt Commander)
Support
-Outriders
-Hussars (6 Hussars)
-Sentinels (particularly AT patterns)
-Light Infantry Platoon (6 light inf)
-Light Support Battery (4 support pieces)
Upgrades
-Light Support Team (4 Light Support Units)
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Troop Types
Hussars-
These would essentially steal the stat line from deathriders pretty much. Ie rough riders wthout scouting and infiltrate. Essentially shock asault troops.
Outriders-
These are essentially rough riders minus the extra attack (but keeping first strike). Justification being that roughriders are a bit overpowered in assaults and to place the onus of CC on the Hussars.
Random thought- Perhaps you could have greater diversity of 2 scout types- one with a CC emphasis, one with improved FF . These could be mixed in an outrider platoon (Im thinking something similar to a kult of speed)
-Dismounting
For a while I have been musing about how best to represent light horse infantry that would ride to a position, dismount and get into cover but retain the ability to redeploy rapidly. I would like to try something like:
Dismount
Troop types with the dismount special rule are able to switch between being mounted and dismounted and have two speed values. The first counts when mounted, the second when dismounted. When dismounted units count as infantry for terrain effects. Units may mount and dismount at the start and end of any move. Also certain weapons can only be used when dismounted. These will have Dismounted listed in the weapon notes.
-Light Infantry
Move 20/15 Save 6+ CC 6+ FF 5+
Weapons
Autocannon AP 5+, AT 6+ Dismounted
*notes- 1 autocanner per every two units in formation
-Light Support Battery
Move 20/15 Save 6+ CC 6+ FF 6+
Weapons
Field Howitzer (same stats as Griffon)
Hellstrike Missile System 30cm, AT5+, AA5+
-Light Support Team
Move 20/15 Save 6+ CC 6+ FF 6+
Weapons
Autocannon Dismounted
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Bit ofa brain dump, but its good to expunge the distracting thoughts and its something different at least
Ive purposefully avoided costings too as my brain is not up to it 
PS- As an alternative thought it may also be nice to design a mechanised recon regt fitted out with salamander scout vehicles, vultures, conquerer tanks and bike troops. Although I guess it would be possible to build something similar using the armoured regt list.
