diff --git a/src/Entity/Employee.php b/src/Entity/Employee.php
index 488f48e..578c4df 100644
--- a/src/Entity/Employee.php
+++ b/src/Entity/Employee.php
@@ -3,22 +3,98 @@
 namespace App\Entity;
 
 
+use Doctrine\Common\Collections\Collection;
+use App\Repository\EmployeeRepository;
 use Doctrine\ORM\Mapping as ORM;
+use Symfony\Component\Security\Core\User\PasswordAuthenticatedUserInterface;
+use Symfony\Component\Security\Core\User\UserInterface;
 
-
-class Employee
+#[ORM\Entity(repositoryClass: EmployeeRepository::class)]
+#[ORM\UniqueConstraint(name: 'UNIQ_IDENTIFIER_EMAIL', fields: ['email'])]
+class Employee implements UserInterface, PasswordAuthenticatedUserInterface
 {
     #[ORM\Id]
     #[ORM\GeneratedValue]
     #[ORM\Column]
     private ?int $id = null;
 
+    #[ORM\Column(length: 180)]
+    private ?string $email = null;
+
     #[ORM\Column(length: 30)]
     private ?string $firstName = null;
 
     #[ORM\Column(length: 30)]
     private ?string $lastName = null;
 
+    #[ORM\Column]
+    private ?string $password = null;
+
+    #[ORM\ManyToOne(targetEntity: EmployeeSkill::class, inversedBy: 'employee')]
+    private Collection $employeeskills;
+
+    #[ORM\ManyToOne(targetEntity: Mission::class, inversedBy: 'employee')]
+    private Collection $missions;
+
+    #[ORM\ManyToOne(targetEntity: Incident::class, inversedBy: 'employee')]
+    private Collection $incidents;
+
+    #[ORM\ManyToOne(targetEntity: Assignment::class, inversedBy: 'employee')]
+    private Collection $assignments;
+
+    #[ORM\ManyToOne(targetEntity: Representation::class, inversedBy: 'employee')]
+    private Collection $representations;
+
+    public function getEmployeeskills(): Collection
+    {
+        return $this->employeeskills;
+    }
+
+    public function setEmployeeskills(Collection $employeeskills): void
+    {
+        $this->employeeskills = $employeeskills;
+    }
+
+    public function getEmployeemissions(): Collection
+    {
+        return $this->employeemissions;
+    }
+
+    public function setEmployeemissions(Collection $employeemissions): void
+    {
+        $this->employeemissions = $employeemissions;
+    }
+
+    public function getEmployeeincidents(): Collection
+    {
+        return $this->employeeincidents;
+    }
+
+    public function setEmployeeincidents(Collection $employeeincidents): void
+    {
+        $this->employeeincidents = $employeeincidents;
+    }
+
+    public function getAssignments(): Collection
+    {
+        return $this->assignments;
+    }
+
+    public function setAssignments(Collection $assignments): void
+    {
+        $this->assignments = $assignments;
+    }
+
+    public function getRepresentations(): Collection
+    {
+        return $this->representations;
+    }
+
+    public function setRepresentations(Collection $representations): void
+    {
+        $this->representations = $representations;
+    }
+
     public function getId(): ?int
     {
         return $this->id;
@@ -31,6 +107,18 @@ class Employee
         return $this;
     }
 
+    public function getEmail(): ?string
+    {
+        return $this->email;
+    }
+
+    public function setEmail(string $email): static
+    {
+        $this->email = $email;
+
+        return $this;
+    }
+
     public function getFirstName(): ?string
     {
         return $this->firstName;
@@ -54,4 +142,27 @@ class Employee
 
         return $this;
     }
+
+    public function getPassword(): ?string
+    {
+        return $this->password;
+    }
+
+    public function setPassword(string $password): static
+    {
+        $this->password = $password;
+
+        return $this;
+    }
+
+    public function eraseCredentials(): void
+    {
+        // If you store any temporary, sensitive data on the user, clear it here
+        // $this->plainPassword = null;
+    }
+
+    public function getUserIdentifier(): string
+    {
+        return (string) $this->email;
+    }
 }
diff --git a/src/Entity/EmployeeIncident.php b/src/Entity/EmployeeIncident.php
deleted file mode 100644
index 87959d0..0000000
--- a/src/Entity/EmployeeIncident.php
+++ /dev/null
@@ -1,19 +0,0 @@
-<?php
-
-namespace App\Entity;
-
-use Doctrine\ORM\Mapping as ORM;
-
-#[ORM\Table(name: 'EmployeeIncident')]
-class EmployeeIncident
-{
-    #[ORM\Id]
-    #[ORM\OneToMany(targetEntity: Employee::class, mappedBy: 'EmployeeIncidents')]
-    #[ORM\JoinColumn(nullable: false)]
-    private ?Employee $employee = null;
-
-    #[ORM\Id]
-    #[ORM\OneToMany(targetEntity: Incident::class, mappedBy: 'EmployeeIncidents')]
-    #[ORM\JoinColumn(nullable: false)]
-    private ?Incident $incident = null;
-}
diff --git a/src/Entity/EmployeeMission.php b/src/Entity/EmployeeMission.php
deleted file mode 100644
index 9cc3ba0..0000000
--- a/src/Entity/EmployeeMission.php
+++ /dev/null
@@ -1,20 +0,0 @@
-<?php
-
-namespace App\Entity;
-
-use App\Repository\EmployeeMissionRepository;
-use Doctrine\ORM\Mapping as ORM;
-
-#[ORM\Entity(repositoryClass: EmployeeMissionRepository::class)]
-class EmployeeMission
-{
-    #[ORM\Id]
-    #[ORM\GeneratedValue]
-    #[ORM\Column]
-    private ?int $id = null;
-
-    public function getId(): ?int
-    {
-        return $this->id;
-    }
-}
diff --git a/src/Entity/MissionCategory.php b/src/Entity/MissionCategory.php
new file mode 100644
index 0000000..76a4d1c
--- /dev/null
+++ b/src/Entity/MissionCategory.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace App\Entity;
+
+use App\Repository\MissionCategoryRepository;
+use Doctrine\ORM\Mapping as ORM;
+
+#[ORM\Entity(repositoryClass: MissionCategoryRepository::class)]
+class MissionCategory
+{
+    #[ORM\Id]
+    #[ORM\OneToMany(targetEntity: Mission::class, mappedBy: 'MissionCategory')]
+    #[ORM\JoinColumn(nullable: false)]
+    private ?Mission $mission = null;
+
+    #[ORM\Id]
+    #[ORM\OneToMany(targetEntity: Category::class, mappedBy: 'MissionCategory')]
+    #[ORM\JoinColumn(nullable: false)]
+    private ?Category $category = null;
+}
diff --git a/src/Repository/EmployeeRepository.php b/src/Repository/EmployeeRepository.php
new file mode 100644
index 0000000..0ec20af
--- /dev/null
+++ b/src/Repository/EmployeeRepository.php
@@ -0,0 +1,60 @@
+<?php
+
+namespace App\Repository;
+
+use App\Entity\Employee;
+use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository;
+use Doctrine\Persistence\ManagerRegistry;
+use Symfony\Component\Security\Core\Exception\UnsupportedUserException;
+use Symfony\Component\Security\Core\User\PasswordAuthenticatedUserInterface;
+use Symfony\Component\Security\Core\User\PasswordUpgraderInterface;
+
+/**
+ * @extends ServiceEntityRepository<Employee>
+ */
+class EmployeeRepository extends ServiceEntityRepository implements PasswordUpgraderInterface
+{
+    public function __construct(ManagerRegistry $registry)
+    {
+        parent::__construct($registry, Employee::class);
+    }
+
+    /**
+     * Used to upgrade (rehash) the user's password automatically over time.
+     */
+    public function upgradePassword(PasswordAuthenticatedUserInterface $user, string $newHashedPassword): void
+    {
+        if (!$user instanceof Employee) {
+            throw new UnsupportedUserException(sprintf('Instances of "%s" are not supported.', $user::class));
+        }
+
+        $user->setPassword($newHashedPassword);
+        $this->getEntityManager()->persist($user);
+        $this->getEntityManager()->flush();
+    }
+
+    //    /**
+    //     * @return Employee[] Returns an array of Employee objects
+    //     */
+    //    public function findByExampleField($value): array
+    //    {
+    //        return $this->createQueryBuilder('e')
+    //            ->andWhere('e.exampleField = :val')
+    //            ->setParameter('val', $value)
+    //            ->orderBy('e.id', 'ASC')
+    //            ->setMaxResults(10)
+    //            ->getQuery()
+    //            ->getResult()
+    //        ;
+    //    }
+
+    //    public function findOneBySomeField($value): ?Employee
+    //    {
+    //        return $this->createQueryBuilder('e')
+    //            ->andWhere('e.exampleField = :val')
+    //            ->setParameter('val', $value)
+    //            ->getQuery()
+    //            ->getOneOrNullResult()
+    //        ;
+    //    }
+}
diff --git a/src/Repository/MissionCategoryRepository.php b/src/Repository/MissionCategoryRepository.php
new file mode 100644
index 0000000..034ae82
--- /dev/null
+++ b/src/Repository/MissionCategoryRepository.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace App\Repository;
+
+use App\Entity\MissionCategory;
+use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository;
+use Doctrine\Persistence\ManagerRegistry;
+
+/**
+ * @extends ServiceEntityRepository<MissionCategory>
+ */
+class MissionCategoryRepository extends ServiceEntityRepository
+{
+    public function __construct(ManagerRegistry $registry)
+    {
+        parent::__construct($registry, MissionCategory::class);
+    }
+
+    //    /**
+    //     * @return MissionCategory[] Returns an array of MissionCategory objects
+    //     */
+    //    public function findByExampleField($value): array
+    //    {
+    //        return $this->createQueryBuilder('m')
+    //            ->andWhere('m.exampleField = :val')
+    //            ->setParameter('val', $value)
+    //            ->orderBy('m.id', 'ASC')
+    //            ->setMaxResults(10)
+    //            ->getQuery()
+    //            ->getResult()
+    //        ;
+    //    }
+
+    //    public function findOneBySomeField($value): ?MissionCategory
+    //    {
+    //        return $this->createQueryBuilder('m')
+    //            ->andWhere('m.exampleField = :val')
+    //            ->setParameter('val', $value)
+    //            ->getQuery()
+    //            ->getOneOrNullResult()
+    //        ;
+    //    }
+}