User blog comment:WolfgangBSC/The Random Chat Room/@comment-24142455-20160907014829/@comment-25009444-20160907064109

I dunno where u got that from but slipspace can be speed adjusted.

In slipspace, the crew of the craft might remain in slipspace for months, even years, but to the people in normal space it could be only days, even hours. From the halo wiki "if ship A and ship B both enter Slipstream space at the same time and exit at the same time, the crew on ship A could have experienced a longer journey subjectively, and the crew of ship A could, in fact, be a week older than that of ship B despite appearances in normal space.". Also if speed couldent be adjusted, how else would the covenant have been able to get to Installation 04 before the Autumn can get there despite the Autumn jumping first? In the halo wiki it says covenant ships could reach over 900 light years/day while the UNSC ships only reached just pasted 2 ly/day, and even faster was the forerunners, they had ships going at nearly 2400 ly/day, if anything slipspace is better than warp. Another thing, ive heard a conversation between enterprise and Owl or someone else, they said something about slipspace just being a name for warp used by the UAC, and warp doesnt exactly follow star trek either, it has some differences.

However, as enterprise probably knows, in halo you can jump into the system, the UNSC couldent before the war because their drives werent good enough, the covenant made intersystem jumps, in fact they did it alot, to my knoledge they described the accuracy difference with "using a scalpel instead of a butter knife", again from the halo wiki:"UNSC ships aren't able to jump with exact precision. A ship may transition back to normal space millions of kilometers from its intended destination.[8] As a result, UNSC ships often transition in and out of slipspace outside star systems, far from any gravity wells of celestial bodies" Note how it mentions specifically UNSC ships. And jumping within a planet's atmosphere wasnt as much as a problem with slipspace as it is with the stuff it will do, the combination of the ship moving and the portal opening and/or closing moveed air so fast it causes a massive shockwave, in Halo 2 a Covenant carrier made a jump in atmosphere and the resulting sockwave caused massive damage to the city it jumped above.

That being said, limitation in FTL travel should be made, making a jump from and into a planet is quite broken. Along with the speed of the FTL travel. In atmosphere or even close orbit battles will have no difference than a battle in open space, by preventing a ship from doing jumps in a planet's gravity will will prevent ships from just "escaping" and force the people from instantly summoning reinforcements.