To start rebuilding a shell, I suggest using a different shell in your shell storage (if you have one) to get items for the shell you want to rebuild. For example, I sometimes use Ironclad to collect items for a Wildfire. This works well if you are bad at the shell stock or you cannot do a certain mission with that shell.

Fire Forest - To beat Fire Forest as a new player, a good strategy would be to try to get an experienced acquaintance to carry you or join a group. When you are with your acquaintance or group, do not closely follow them, instead, wait a few seconds for them to clear out the monsters then you can continue. During Midboss hide by the door you entered through, and make sure to dodge the projectiles if needed. During boss I recommend going to a tower with an opening in the middle of it (Like in the picture below) while constantly attacking for safety. After a short while you will get the victory.

Elite - for Elite Fire Forest the same strategy can be used.

Frozen Blight - something
Elite - something

Fungus Cave - something
Elite - something

Vanquished - something
Elite - something

Underground Base - something
Elite - something

Strands - something
Elite - something

Graveyard - something
Elite - something

Temple of the Lost - something
Elite - something

Star Cathedral - Before you are ready for this mission make sure you have a shell thats at least MK3 or MK4 to make the mission a bit easier. While the portals are opening it is recommended you get into the first, second or third portal, in these portals there will be the most people and most of the time it has the best players. If you have lag or a not so good device, try going in the last portals. You will know when it’s the last portal when players call it and start entering really fast. When you are finally in the portal you want to be in, stay in the main room you spawn in and wait for all four gens to get deactivated to get into the boss at full health if you don’t feel to confident doing the main rooms. If you do feel confident though, then go to the doorway majority of people are going to, when you enter, stay behind quite a bit for safety (not to far though!) star far enough back that you wont encounter any monsters but you can still get the drops like stats and currency. There are four Midbosses, these are Bones, Hive, Jump, and Patriarch. Jump is the only one that does not have an enemy in it. When all the generators are down and you enter the boss room, you should stay where the majority of people are, they know what they are doing. After a while you should get the victory if you had good dodging skills and keeping up with everyone else. Enjoy your loot. P.S. Star Cathedral is easiest on a good Ironclad but hardest as a stock one.

The following is a list of every implant, what they do, and which ones I recommend to use.
Inferior Armites - Armor +10
Inferior Delites - Damage +20%
more stuff coming soon

^{ong u found a sec}